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Worksheets

Factorising Grade 10

Total questions: 251

Worksheet time: 7hrs 39mins

Name
Class
Date
1.
   6m2 + 16m
a)
2(3m2 + 8m)
b)
2m(3m + 8)
c)
2m(3m - 8m)
d)
not factorable
2.
Factorise 4x + 14
a)
2(2x+7)
b)
4(x+10)
c)
4(x+3)
d)
2(x+12)
3.
Factorise 8x + 12
a)
4(x+2)
b)
8(x+4)
c)
4(x+3)
d)
4(2x+3)
4.
Factorise fully: 6x + 18
a)
3(2x + 6)
b)
6(x+3)
c)
2(3x+9)
d)
6(x+12)
5.
Factorsie fully: 20x + 30
a)
10(2x+3)
b)
10(x+3)
c)
5(4x+6)
d)
2(10x+15)
6.
Factorise fully 10x + 15
a)
5(x+3)
b)
2(5x+7)
c)
10(x+5)
d)
5(2x+3)
7.
Factorise fully 8x+32
a)
8(x+4)
b)
4(2x+16)
c)
2(4x+16)
d)
4(2x+8)
8.
Factorise fully: 27x + 45
a)
27(x+18)
b)
3(9x+15)
c)
9(3x+5)
d)
9(3x+36)
9.
Factorise fully: ab + 4b
a)
a(b+4)
b)
b(a+4)
c)
ab(1+4)
d)
b(a+4b)
10.
Factorise 6b + 8
a)
4(2b+2)
b)
2(3b+4)
c)
2(b+4)
d)
4(3b+2)
11.
Factorise fully: 18x + 24
a)
6(2x+4)
b)
2(9x+12)
c)
3(6x+8)
d)
6(3x+4)
12.
Factorise: 3x + 12
a)
3(x+4)
b)
3(x+5)
c)
3(3x + 9)
d)
3(x+9)
13.
Factorise: 4x2 + 8x
a)
4x(x+2)
b)
4(x2+2x)
c)
2x(2x+4)
d)
2(2x2+4)
14.
Factorise: 12x2 + 15x
a)
6x(2x+3)
b)
3(x2+5x)
c)
4x(3x+5)
d)
3x(4x+5)
15.
Factorise: 5x-10
a)
5(x-2)
b)
5(x+2)
c)
5(x-5)
d)
5(x+5)
16.
Factorise: 15y - 5
a)
5(3y+1)
b)
15(y-10)
c)
5(3y-1)
d)
5(y-3)
17.
Factorise fully: 6x2 - 3x
a)
3x(2-x)
b)
3(2x2-x)
c)
3x(2x-1)
d)
6x(x-3)
18.
Factorise: 9x - 12
a)
4(3x - 3)
b)
3(3x - 4)
c)
3x(x - 4)
d)
9(x-3)
19.
Factorise fully: 18 - 6x
a)
3(2x - 3)
b)
3(6 - 2x)
c)
6(3 - x)
d)
6(x - 3)
20.
12x + 9
a)
3(4x + 3)
b)
x(12+9)
c)
3(4x - 3)
d)
not factorable
21.
Factorise
x2 + 8x + 12
a)
(x + 3)(x + 4)
b)
(x + 6)(x + 2)
c)
(x + 4)(x + 4)
d)
(x + 1)(x + 12)
22.
Factorise
x2 + 15x + 36
a)
(x + 6)(x + 6)
b)
(x + 9)(x +4)
c)
(x + 4)(x + 9)
d)
(x + 12)(x + 3)
23.
Factorise
x2 + 8x 
a)
(x + 2)(x + 4)
b)
(x + 8)(x + 1)
c)
x(x + 8)
d)
2x(x + 4)
24.
Factorise
x2 + 4x - 12
a)
(x + 6)(x - 2) 
b)
(x - 4)(x + 2)
c)
(x - 6)(x + 2)
d)
(x - 6)(x - 2)
25.
Factorise
x2 - 6x - 16
a)
x(x - 6)
b)
(x - 8)(x - 2)
c)
(x + 2)(x - 8)
d)
(x - 4)(x - 4)
26.
Factorise
x2 - 8x + 12
a)
(x - 12)(x + 4)
b)
(x + 6)(x - 2)
c)
(x + 6)(x + 2)
d)
(x - 2)(x - 6)
27.
Factorise
x2 - 7x + 6
a)
(x - 6)(x - 1)
b)
(x + 4)(x + 2)
c)
(x + 1)(x + 6)
d)
(x - 10)(x + 3)
28.
Factorise
2x2 + 9x + 10
a)
(x + 10)(2x + 1)
b)
(2x +10)(x - 1)
c)
(2x + 5)(x + 2)
d)
(x + 1)(x + 10)
29.
Factorise
3x2 + 7x - 20
a)
(3x + 2)( x -10)
b)
(3x - 5)(x + 4)
c)
(x + 20)(3x - 1)
d)
(3x - 5)(x - 4)
30.
Factorise
6x2 - 19x + 20
a)
(3x - 4)(2x - 5)
b)
(3x - 4)(2x + 5)
c)
(3x + 2)(2x - 10)
d)
(3x + 2)(2x + 10)
31.

Factorise the expression:


x2 + x - 6

a)

(x + 3)(x - 2)

b)

(x + 2)(x - 3)

c)

(x + 6)(x - 1)

d)

(x + 1)(x - 6)

32.

Factorise the expression:


x2 + 5x + 6

a)

(x + 3)(x + 2)

b)

(x + 2)(x - 3)

c)

(x + 5)(x + 1)

d)

(x - 2)(x - 3)

33.

Factorise the expression:


x2 + 9x + 20

a)

(x + 4)(x + 5)

b)

(x - 4)(x - 5)

c)

(x + 3)(x + 6)

d)

(x - 3)(x - 6)

34.

Factorise the expression:


x2 + 10x + 9

a)

(x + 4)(x + 5)

b)

(x + 1)(x + 9)

c)

(x - 1)(x + 10)

d)

(x + 3)(x + 6)

35.

Factorise the expression:


x2 - 7x + 12

a)

(x + 3)(x + 4)

b)

(x - 3)(x - 4)

c)

(x - 3)(x + 4)

d)

(x + 3)(x - 4)

36.

Factorise the expression:


x2 - 2x - 24

a)

(x + 6)(x - 4)

b)

(x - 6)(x + 4)

c)

(x - 12)(x + 2)

d)

(x - 6)(x - 4)

37.

Factorise the expression:


x2 - 6x - 27

a)

(x - 9)(x - 3)

b)

(x - 9)(x + 3)

c)

(x - 3)(x + 9)

d)

(x + 3)(x + 9)

38.

Factorise the expression:


x2 + 5x - 24

a)

(x + 8)(x - 3)

b)

(x + 3)(x - 8)

c)

(x + 6)(x - 4)

d)

(x + 4)(x - 6)

39.

Factorise the expression:


x2 + 8x + 16

a)

(x + 4)2

b)

(x + 3)(x + 5)

c)

(x - 4)2

d)

(x + 8)(x + 2)

40.

Factorise the expression:


x2 + 7x - 78

a)

(x + 13)(x - 6)

b)

(x + 26)(x - 3)

c)

(x - 13)(x + 6)

d)

(x + 3)(x - 26)

41.

Expand and simplify the following quadratic expression...


(x + 4)(x + 6)

a)

x2 + 10x + 24

b)

x2 + 10x + 10

c)

x2 + 24x + 10

d)

x2 + 24x + 24

42.

Expand and simplify the following quadratic expression...


(x + 3)(x + 2)

a)

x2 + 5x + 6

b)

x2 + 5x + 5

c)

x2 + 6x + 6

d)

x2 + 6x + 5

43.

Expand and simplify the following quadratic expression...


(x + 3)(x + 8)

a)

x2 + 11x + 24

b)

x2 + 11x + 11

c)

x2 + 24x + 11

d)

x2 + 24x + 24

44.

Expand and simplify the following quadratic expression...


(x - 8)(x + 8)

a)

x2 + 16x - 64

b)

x2 + 16x + 64

c)

x2 - 16x + 64

d)

x2 - 64

45.

Expand and simplify the following quadratic expression...


(x - 6)(x + 5)

a)

x2 + x - 30

b)

x2 - x - 30

c)

x2 + x + 30

d)

x2 - x + 30

46.

Expand and simplify the following quadratic expression...


(x - 6)(x - 4)

a)

x2 - 10x + 24

b)

x2 - 10x - 24

c)

x2 + 10x - 24

d)

x2 + 10x + 24

47.

Factorise the following quadratic expression...


x2 + 14x + 24

a)

(x + 12)(x + 2)

b)

(x + 8)(x + 3)

c)

(x + 4)(x + 6)

d)

(x + 24)(x + 1)

48.

Factorise the following quadratic expression...


x2 + 12x + 32

a)

(x + 16)(x + 2)

b)

(x + 8)(x + 4)

c)

(x + 6)(x + 6)

d)

(x + 32)(x + 1)

49.

x2 - 9

a)

(x + 3)2

b)

(x + 3) (x - 3)

c)

(x - 3)2

d)

x + 3(x - 3)

50.

x2 - 16

a)

(x + 4) (x - 4)

b)

(x + 8) (x - 2)

c)

(x + 4)2

d)

x + 4(x - 4)

51.

4x2 - 25

a)

(2x + 5) (2x - 5)

b)

(2x - 5)2

c)

(2x + 5)2

d)

2x + 5(2x - 5)

52.

25x2 - 36y2

a)

5x + 6y(5x - 6y)

b)

(5x + 6y) (5x - 6y)

c)

(5x + 6y)2

d)

(5x - 6y)2

53.

4x2y2 - 1

a)

(2 + xy) (2 - xy)

b)

(2x + y) (2x - y)

c)

(2xy + 1) (2xy - 1)

d)

(2y + x) (2y - x)

54.

64x2 - 81y2

a)

(8x + 7y) (8x - 7y)

b)

(8x + 9y) (8x - 9y)

c)

(6x + 7y) (6x - 7y)

d)

(6x + 9y) (6x - 9y)

55.

4x2 - 16

a)

4(2x + 4) (x - 2)

b)

4(4x + 2) (x - 2)

c)

(2x + 4) (2x - 4)

d)

4(x + 2) (x - 2)

56.

49x2 - 144y2

a)

(7x + 16y) (7x - 16y)

b)

(7x + 12y)2

c)

(12x + 7y) (12x - 7y)

d)

(7x + 12y) (7x - 12y)

57.

x4 - 100y2

a)

(x2 + 10y) (x2 - 10y)

b)

(x + 10y) (x - 10y)

c)

(x + 10y) (x3 - 10y)

d)

(x3 + 10y) (x - 10y)

58.

121x2y6z8 - 225w4

a)

(11xy4z4 + 15w) (11xy2z4 - 15w)

b)

(11x2y3z4 + 15w) (11x2y3z4 - 15w)

c)

(11xy3z4 + 15w2) (11xy3z4 - 15w2)

d)

(11xy3z + 15w2) (11xy3z3 - 15w2)

59.

We can't factor using difference of two square this

49x2 + 4y2. Why?

a)

Because 4 is not a perfect cubed number.

b)

Because 4 is not a perfect squared number.

c)

Because 49 is not a perfect squared number.

d)

Because we can't factor using difference of two squares if it is addition sign.

60.

We can't factor using difference of two square this

25x2 - 51y2. Why?

a)

Because 51 is not a perfect cubed number.

b)

Because 51 is not a perfect squared number.

c)

Because 25 is not a perfect squared number.

d)

Because we can't factor using difference of two squares if it is addition sign.

61.

Which one is false about the difference of two squares?

a)

We can factor that it is addition sign.

b)

We can factor that it is a perfect squared number (Example: x2, 25, 49)

c)

Formula: a2 - b2 = (a + b) (a - b)

d)

We can factor that it is minus sign.

62.

Which of these can factor using difference of two squares?

a)

144x2 - 49y2

b)

x2 + 4x - 12

c)

100x2 + 20x + 1

d)

14x - 16

63.

x2 − 7x − 18

a)

(x − 9)(x + 2)

b)

(x + 9)(x + 2)

c)

(x − 9)(x - 2)

d)

(x − 9)(x - 2)

64.

p2 − 5p − 14

a)

( p + 2)( p + 7)

b)

( p + 2)( p − 7)

c)

( p - 2)( p − 7)

d)

( p - 2)( p + 7)

65.

m2 − 9m + 8

a)

(m + 1)(m − 8)

b)

(m − 1)(m + 8)

c)

(m − 1)(m − 8)

d)

(m + 1)(m + 8)

66.

x2 − 16x + 63

a)

(x + 9)(x + 7)

b)

(x − 9)(x + 7)

c)

(x + 9)(x − 7)

d)

(x − 9)(x − 7)

67.

7k2 + 9k

a)

k(7k - 9)

b)

k(7k + 9)

c)

7k(k + 9)

d)

(k+3)(7k + 3)

68.

7x2 − 45x − 28

a)

7(x + 4)(x − 7)

b)

(x + 4)(7x - 7)

c)

(7x + 4)(x − 7)

d)

(7x - 4)(x + 7)

69.

2b2 + 17b + 21

a)

(2b + 7)(b + 3)

b)

(2b + 3)(b - 7)

c)

2(b + 3)(b + 7)

d)

(2b + 3)(b + 7)

70.

5p2 − p − 18

a)

5(p + 9)( p − 2)

b)

(p + 9)( 5p − 2)

c)

(5p - 9)( p + 2)

d)

(5p + 9)( p − 2)

71.

7x2 − 32x − 60

a)

(7x + 10)(x − 6)

b)

7(x + 10)(x − 6)

c)

(7x - 10)(x − 6)

d)

(7x - 10)(x + 6)

72.

9r2 − 5r − 10

a)

(9r + 2)(r - 5)

b)

(3r + 2)(3r - 5)

c)

9(r + 2)(r - 5)

d)

not factorable

73.

9x2 + 7x − 56

a)

(3x + 7)(3x - 8)

b)

9(x + 7)(x - 8)

c)

(3x - 7)(3x - 8)

d)

not factorable

74.
Factor completely: 3x2-36x+96
a)
(x-4)(x-8)
b)
3(x-4)(x-8)
c)
3(x+1)(x+32)
d)
3(x-2)(x+16)
75.
Factor completely: 2x2+22x+60
a)
(2x+10)(x+6)
b)
(x+5)(x+6)
c)
2(x+1)(x+30)
d)
2(x+5)(x+6)
76.
Factor completely: x2-13x+40
a)
(x-5)(x-8)
b)
(x+5)(x+8)
c)
(x-4)(x-10)
d)
(x-2)(x-20)
77.

Which of the following is a difference of squares?

a)

x2 - 18

b)

4x2 + 36

c)

9x2 - 100

d)

x2 + 4

78.
What are the factors of
25x2 - 81?
a)
(5x - 9)(5x + 9)
b)
(5x - 9)(5x - 9)
c)
(5x + 9)(5x + 9)
d)
Cannot be factored
79.

Factor 4b5+4b3+16b2

a)

4b3(b4+b2+4b)

b)

4b3(b4+4b+5)

c)

4(b5+b3+4b2)

d)

4b2(b3+b+4)

80.

Solve

h2 + 7h + 10 = 0

a)

A. h= -5 or h= -2

b)

B. h= 5 or h= 2

c)

C. h = -1 or h= -10/6

d)

D. h = -2/5, or h= -10

81.

Factor the following expression

10x³ - 15x

a)

x(10x² - 15)

b)

5x(2x² - 3)

c)

5(2x³ - 3x)

d)

5x²(10x - 3)

82.
Factor:
x2 - 9
a)
(x + 3)(x - 3)
b)
(x + 3)2
c)
(x - 3)2
d)
(x+3)(x+3)
83.
Factor Completely.  
8x3 - 18x
a)
2x(4x2-9)                                    
b)
(4x2+3)(2x-3)
c)
2x(2x+3)(2x-3)
d)
PRIME
84.
20x3-25x2+4x-5
a)
(5x2-5)(4x+1)
b)
5(x2-1)(4x+5)
c)
(5x2+1)(4x-5)
d)
(5x2+1)(4x-1)
85.
Factor by grouping:
x³+7x²-2x-14
a)
(x²-2)(x-7)
b)
(x²+2)(x-7)
c)
(x²+2)(x+7)
d)
(x²-2)(x+7)
86.
3b(9b-27)=0
a)
{-3,3}
b)
{0,3}
c)
{-3,9}
d)
{3,3}
87.
12x + 9
a)
3(4x + 3)
b)
x(12+9)
c)
3(4x - 3)
d)
not factorable
88.
Find the factors of 5x2+20x+20
a)
5(x+2)(x+2)
b)
5(x-2)(x-2)
c)
5(x+2)(x-2)
d)
(5x+2)(x+2)
89.
Factor Completely: x4-9x2
a)
x2(x+3)(x-3)
b)
(x2+3x)(x2-3x)
c)
(x2+9)(x-3)(x+3)
d)
x2(x2-9)
90.
What is the factored form of 5n³-10n²+3n-6
a)
(5n²+3)(n-2)
b)
(5n²-3)(n-2)
c)
(5n³+3)(n-2)
d)
10n(n²-6)
91.
Factor p- 3p2 - 16p + 48 
a)
p2 ( p - 3) (p - 3) 
b)
(p2 - 16) (p - 3)  
c)
(p + 4) (p - 4) (p - 3) 
92.
x3-5x2+5x-25
a)
(x2-5)(x-5)
b)
(x2+5)(x-5)
c)
(x2+5)(x+5)
d)
(x2-1)(x-25)
93.
Factor by grouping:
4p³+8p²+3p+6
a)
(2p²+3)(p+2)
b)
(2p²+6)(p+4)
c)
(4p²+3)(p+2)
d)
(4p²+8p)(3p+6)
94.
   6m2 + 16m
a)
2(3m2 + 8m)
b)
2m(3m + 8)
c)
2m(3m - 8m)
d)
not factorable
95.
Factorise 4x + 14
a)
2(2x+7)
b)
4(x+10)
c)
4(x+3)
d)
2(x+12)
96.
Factorise 8x + 12
a)
4(x+2)
b)
8(x+4)
c)
4(x+3)
d)
4(2x+3)
97.
Factorise fully: 6x + 18
a)
3(2x + 6)
b)
6(x+3)
c)
2(3x+9)
d)
6(x+12)
98.
Factorsie fully: 20x + 30
a)
10(2x+3)
b)
10(x+3)
c)
5(4x+6)
d)
2(10x+15)
99.
Factorise fully 10x + 15
a)
5(x+3)
b)
2(5x+7)
c)
10(x+5)
d)
5(2x+3)
100.
Factorise fully 8x+32
a)
8(x+4)
b)
4(2x+16)
c)
2(4x+16)
d)
4(2x+8)
101.

Factorise fully: 27x2 + 45x3

a)

27(x+18)

b)

3x2(9+15x)

c)

9x2(3 + 5x)

d)

9(3x+5)

102.

Factorise fully: ab + 4b2

a)

a(b+4)

b)

b2(a+ 4)

c)

ab(1+ 4)

d)

b(a+4b)

103.

Factorise -6b - 8

a)

4(2b+2)

b)

-2(3b + 4)

c)

2(b+4)

d)

2(3b - 4)

104.
Factorise fully: 18x + 24
a)
6(2x+4)
b)
2(9x+12)
c)
3(6x+8)
d)
6(3x+4)
105.

Factorise: 3x + 12x3 - 6x2

a)

3(x+ 4x2 - 2)

b)

3(x+ 5 - 6x2)

c)

3x(1 + 4x2 - 2x)

d)

3x(x+ 4x2 -2x)

106.
Factorise: 4x2 + 8x
a)
4x(x+2)
b)
4(x2+2x)
c)
2x(2x+4)
d)
2(2x2+4)
107.
Factorise: 12x2 + 15x
a)
6x(2x+3)
b)
3(x2+5x)
c)
4x(3x+5)
d)
3x(4x+5)
108.

Factorise: -5x +10

a)

-5(x - 2)

b)

5(x+2)

c)

5(x - 5)

d)

5(x + 5)

109.
Factorise: 15y - 5
a)
5(3y+1)
b)
15(y-10)
c)
5(3y-1)
d)
5(y-3)
110.
Factorise fully: 6x2 - 3x
a)
3x(2-x)
b)
3(2x2-x)
c)
3x(2x-1)
d)
6x(x-3)
111.
Factorise: 9x - 12
a)
4(3x - 3)
b)
3(3x - 4)
c)
3x(x - 4)
d)
9(x-3)
112.
Factorise fully: 18 - 6x
a)
3(2x - 3)
b)
3(6 - 2x)
c)
6(3 - x)
d)
6(x - 3)
113.
12x + 9
a)
3(4x + 3)
b)
x(12+9)
c)
3(4x - 3)
d)
not factorable
114.

-4u(2b - 4u)

a)

-8ub + 16 u2

b)

-8ub + 16u

c)

ub + 16u2

d)

8ub + 16u2

115.
Which of the following is the correct expansion of:
3p(4p - 7q)?
a)
7p - 10pq
b)
12pq - 21q2
c)
9q
d)
12p2 - 21pq
116.
Which of the following is equivalent to 5x + 23
a)
5(x + 5) - 2
b)
5(x + 23)
c)
5(x + 15) + 3
d)
5(x + 4) + 6
117.
Expand 3(4d - 3)
a)
12d - 9
b)
7d - 6
c)
34d - 33
d)
12d2 - 9
118.
Expand 3z(4z + 6)
a)
12z2 + 18z
b)
34z2 + 18
c)
12z2 + 18
d)
12z2 - 18z
119.
Factorise
x2 + 8x + 12
a)
(x + 3)(x + 4)
b)
(x + 6)(x + 2)
c)
(x + 4)(x + 4)
d)
(x + 1)(x + 12)
120.
Factorise
x2 + 15x + 36
a)
(x + 6)(x + 6)
b)
(x + 9)(x +4)
c)
(x + 4)(x + 9)
d)
(x + 12)(x + 3)
121.
Factorise
x2 + 4x - 12
a)
(x + 6)(x - 2) 
b)
(x - 4)(x + 2)
c)
(x - 6)(x + 2)
d)
(x - 6)(x - 2)
122.
Factorise
x2 - 6x - 16
a)
x(x - 6)
b)
(x - 8)(x - 2)
c)
(x + 2)(x - 8)
d)
(x - 4)(x - 4)
123.
Factorise
x2 - 8x + 12
a)
(x - 12)(x + 4)
b)
(x + 6)(x - 2)
c)
(x + 6)(x + 2)
d)
(x - 2)(x - 6)
124.
Factorise
x2 - 7x + 6
a)
(x - 6)(x - 1)
b)
(x + 4)(x + 2)
c)
(x + 1)(x + 6)
d)
(x - 10)(x + 3)
125.

Factorise the expression:


x2 + x - 6

a)

(x + 3)(x - 2)

b)

(x + 2)(x - 3)

c)

(x + 6)(x - 1)

d)

(x + 1)(x - 6)

126.

Factorise the expression:


x2 + 5x + 6

a)

(x + 3)(x + 2)

b)

(x + 2)(x - 3)

c)

(x + 5)(x + 1)

d)

(x - 2)(x - 3)

127.

Factorise the expression:


x2 + 9x + 20

a)

(x + 4)(x + 5)

b)

(x - 4)(x - 5)

c)

(x + 3)(x + 6)

d)

(x - 3)(x - 6)

128.

Factorise the expression:


x2 + 10x + 9

a)

(x + 4)(x + 5)

b)

(x + 1)(x + 9)

c)

(x - 1)(x + 10)

d)

(x + 3)(x + 6)

129.

Factorise the expression:


x2 - 7x + 12

a)

(x + 3)(x + 4)

b)

(x - 3)(x - 4)

c)

(x - 3)(x + 4)

d)

(x + 3)(x - 4)

130.

Factorise the expression:


x2 - 2x - 24

a)

(x + 6)(x - 4)

b)

(x - 6)(x + 4)

c)

(x - 12)(x + 2)

d)

(x - 6)(x - 4)

131.

Factorise the expression:


x2 - 6x - 27

a)

(x - 9)(x - 3)

b)

(x - 9)(x + 3)

c)

(x - 3)(x + 9)

d)

(x + 3)(x + 9)

132.

Factorise the expression:


x2 + 5x - 24

a)

(x + 8)(x - 3)

b)

(x + 3)(x - 8)

c)

(x + 6)(x - 4)

d)

(x + 4)(x - 6)

133.

Factorise the expression:


x2 + 8x + 16

a)

(x + 4)2

b)

(x + 3)(x + 5)

c)

(x - 4)2

d)

(x + 8)(x + 2)

134.

 Fully factorise x2121x^2-121



(a)  

135.

 Fully factorise x24x^2-4



(a)  

136.

 Fully factorise 5x2+13x+65x^2+13x+6



(a)  

137.

Fully factorise 2x2+20x+422x^2+20x+42  

(a)  

138.

 Fully factorise 9x2+22x+89x^2+22x+8  



(a)  

139.

Fully factorise 16x22516x^2-25  

(a)  

140.

Fully factorise the following x3+16x2+63xx^3+16x^2+63x  

(a)  

141.

Fully factorise 8x2+14x+58x^2+14x+5  

(a)  

142.

Fully factorise 5x230x+405x^2-30x+40  

(a)  

143.

49x2149x^2-1  

(a)  

144.

Fully factorise 5x2+13x65x^2+13x-6  

(a)  

145.

Fully factorise x37x218xx^3-7x^2-18x  

(a)  

146.

Fully factorise 81x2481x^2-4



(a)  

147.

Fully factorise 7x219x67x^2-19x-6  

(a)  

148.

Fully factorise 12x22x412x^2-2x-4  

(a)  

149.

Fully factorise 25x3x25x^3-x  

(a)  

150.

Fully factorise 10x211x610x^2-11x-6  

(a)  

151.

Fully factorise 10x211x610x^2-11x-6  

(a)  

152.

Fully factorise 100x336x100x^3-36x  

(a)  

153.

Fully factorise 100x3210x2100x100x^3-210x^2-100x  

(a)  

154.

5n310n2+3n65n³-10n²+3n-6  

a)

(5n2+3)(n2)(5n²+3)(n-2)  

b)

(5n23)(n2)(5n²-3)(n-2)  

c)

(5n3+3)(n2)(5n³+3)(n-2)  

d)

10n(n26)10n(n²-6)  

155.

4p3+8p2+3p+64p^3+8p^2+3p+6  

a)

(2p2+3)(p+2)(2p^2+3)(p+2)  

b)

(2p2+6)(p+4)(2p^2+6)(p+4)  

c)

(4p2+3)(p+2)(4p^2+3)(p+2)  

d)

(4p2+8p)(3p+6)(4p^2+8p)(3p+6)  

156.

a)

A

b)

B

c)

C

d)

D

157.

a)

A

b)

B

c)

C

d)

D

158.

a)

A

b)

B

c)

C

d)

D

159.

Factorise : x2 - 9

a)

(x-3)(x-3)

b)

(x-3)(x+3)

c)

(x-3)(3-x)

d)

(x-3)2

160.

x2 + 2x +1

a)

(x+1)2

b)

(x-1)2

c)

(x+1)(x-1)

d)

none of these

161.

(x2 - 8x +16)

a)

(x+4)2

b)

(x-4)2

c)

(x+4)(x-4)

d)

can not be factorised.

162.

x2 + 15x + 50

a)

(x+3)(x+5)

b)

(x+30)(x+20)

c)

(x+30)(x-20)

d)

(x+5)(x+10)

163.

x2 y2 - 25

a)

(xy + 5) 2

b)

(xy + 5)(xy - 5)

c)

(xy -5)(xy - 5)

d)

can not be factorised

164.

m2 + 9x + 14

a)

(m+3)2

b)

(m-3)2

c)

(m+2)(m+7)

d)

(m+4)(m+10)

165.

(m.m - 4m - 77)

a)

(m+4)(m+7)

b)

(m-11)(m+7)

c)

(m+11)(m-7)

d)

(m+11)(m+7)

166.

Factorise 2x2+10x+28-2x^2+10x+28  

Do not use any spaces!

(a)  

167.

Factorise 12116y2121-16y^2  

Do not use any spaces!

(a)  

168.
Factorise
x2 + 15x + 36
a)
(x + 6)(x + 6)
b)
(x + 9)(x +4)
c)
(x + 4)(x + 9)
d)
(x + 12)(x + 3)
169.
Factorise
x2 + 8x + 12
a)
(x + 3)(x + 4)
b)
(x + 6)(x + 2)
c)
(x + 4)(x + 4)
d)
(x + 1)(x + 12)
170.
Factorise
x2 + 15x + 36
a)
(x + 6)(x + 6)
b)
(x + 9)(x +4)
c)
(x + 4)(x + 9)
d)
(x + 12)(x + 3)
171.
Factorise
x2 + 4x - 12
a)
(x + 6)(x - 2) 
b)
(x - 4)(x + 2)
c)
(x - 6)(x + 2)
d)
(x - 6)(x - 2)
172.
Factorise
x2 - 6x - 16
a)
x(x - 6)
b)
(x - 8)(x - 2)
c)
(x + 2)(x - 8)
d)
(x - 4)(x - 4)
173.
Factorise
x2 - 8x + 12
a)
(x - 12)(x + 4)
b)
(x + 6)(x - 2)
c)
(x + 6)(x + 2)
d)
(x - 2)(x - 6)
174.
Factorise
x2 - 7x + 6
a)
(x - 6)(x - 1)
b)
(x + 4)(x + 2)
c)
(x + 1)(x + 6)
d)
(x - 10)(x + 3)
175.
Factor
x+ 9x - 36
a)
(x + 12)(x - 3)
b)
(x + 9)(x - 4)
c)
(x - 12)(x + 3)
d)
(x - 9)(x - 4)
176.
Factor
n2 + 5n - 6
a)
(n - 2)(n - 3)
b)
(n - 1)(n + 6)
c)
(n + 1)(n - 6)
d)
(n + 2)(n - 3)
177.
Factor
a2 - a - 12
a)
(a - 4)(a + 3)
b)
(a + 6)(a - 4)
c)
(a - 6)(a + 4)
d)
(a + 4)(a - 3)
178.
Factor
r2 -16r + 60
a)
(r - 15)(r + 4)
b)
(r - 6)(r + 10)
c)
(r - 6)(r - 10)
d)
(r +30)(r - 2)
179.
Factor
x-16x + 48
a)
(x - 12)(x - 4)
b)
(x + 6)(x - 8)
c)
(x + 12)(x - 4)
d)
(x -16)(x - 3)
180.
Factor:
v2 + 3v - 88
a)
(v + 11)(v - 8)
b)
(v + 22)(v - 4)
c)
(v + 8)(v - 11)
d)
(v - 22)(v + 4)
181.
Factor:
x-15x + 36
a)
(x - 18)(x + 2)
b)
(x - 12)(x - 3)
c)
(x - 12)(x + 3)
d)
(x + 18)(x - 2)
182.
Factor
x2 +17x - 60
a)
(x - 20)(x + 3)
b)
(x + 12)(x - 5)
c)
(x - 12)(x + 5)
d)
(x + 20)(x - 3)
183.
Factorise
2x2 + 9x + 10
a)
(x + 10)(2x + 1)
b)
(2x +10)(x - 1)
c)
(2x + 5)(x + 2)
d)
(x + 1)(x + 10)
184.
Factorise
3x2 + 7x - 20
a)
(3x + 2)( x -10)
b)
(3x - 5)(x + 4)
c)
(x + 20)(3x - 1)
d)
(3x - 5)(x - 4)
185.
Factorise
6x2 - 19x + 20
a)
(3x - 4)(2x - 5)
b)
(3x - 4)(2x + 5)
c)
(3x + 2)(2x - 10)
d)
(3x + 2)(2x + 10)
186.

Factor completely,

6x218x606x^2-18x-60  

4 lines
187.

Expand,

(2x1)(x3)\left(2x-1\right)\left(x-3\right)  

4 lines
188.

Factor,

x264x^2-64  

4 lines
189.

Expand,

(2x7)2\left(2x-7\right)^2  

4 lines
190.

Factor,

2x2+3x202x^2+3x-20  

4 lines
191.

Factor

3218y232-18y^2  

4 lines
192.

What

x25x+6x3\frac{x^2-5x+6}{x-3}  be equal to?

4 lines
193.

x(y+4)2(y+4)x\left(y+4\right)-2\left(y+4\right)  

a)

(y+4)(x2)\left(y+4\right)\left(x-2\right)  

b)

(xy+4)(2y8)\left(xy+4\right)\left(2y-8\right)  

c)

(y4x)(2+x)\left(y-4x\right)\left(2+x\right)  

d)

(x+4)(y2)\left(x+4\right)\left(y-2\right)  

194.

a2b2400a^2b^2-400  

a)

(ab20)2\left(ab-20\right)^2  

b)

(ab100)(ab+100)\left(ab-100\right)\left(ab+100\right)  

c)

ab(ab400)ab\left(ab-400\right)  

d)

(ab+20)(ab20)\left(ab+20\right)\left(ab-20\right)  

195.

10p2+30+p3+3p10p^2+30+p^3+3p  

a)

10(p2+3)+p(p2+3)10\left(p^2+3\right)+p\left(p^2+3\right)  

b)

p(10p+30+p2+3)p\left(10p+30+p^2+3\right)  

c)

(p+10)(p+3)\left(p+10\right)\left(p+3\right)  

d)

(p2+3)(10+p)\left(p^2+3\right)\left(10+p\right)  

196.

w210w+25w^2-10w+25  

a)

(w5)2\left(w-5\right)^2  

b)

(w5)(w+5)\left(w-5\right)\left(w+5\right)  

c)

(w+5)2\left(w+5\right)^2  

d)

(w12)(w+2)\left(w-12\right)\left(w+2\right)  

197.

3b2+21b903b^2+21b-90  

a)

3(b2+7b30)3\left(b^2+7b-30\right)  

b)

3(b+10)(b3)3\left(b+10\right)\left(b-3\right)  

c)

3b(b+7)903b\left(b+7\right)-90  

d)

3(b+15)(b2)3\left(b+15\right)\left(b-2\right)  

198.

5x2+7x+25x^2+7x+2  

a)

(5x+5)(5x+2)\left(5x+5\right)\left(5x+2\right)  

b)

(x+2)(x+5)\left(x+2\right)\left(x+5\right)  

c)

(5x+2)(x+1)\left(5x+2\right)\left(x+1\right)  

d)

(x+7)(x+2)\left(x+7\right)\left(x+2\right)  

199.

4d+12de3e4d+12-de-3e  

a)

4(d3)e(d3)4\left(d-3\right)-e\left(d-3\right)  

b)

(d3)(4e)\left(d-3\right)\left(4-e\right)  

c)

4(d+3)e(d+3)4\left(d+3\right)-e\left(d+3\right)  

d)

(d+3)(4e)\left(d+3\right)\left(4-e\right)  

200.

4n2+12n+84n^2+12n+8  

a)

4(n+1)(n+2)4\left(n+1\right)\left(n+2\right)  

b)

(4n+4)(4n+2)\left(4n+4\right)\left(4n+2\right)  

c)

4(n+1)(4n+3)4\left(n+1\right)\left(4n+3\right)  

d)

(2n+4)(2n+2)\left(2n+4\right)\left(2n+2\right)  

201.

y41y^4-1  

a)

(y21)(y2+1)\left(y^2-1\right)\left(y^2+1\right)  

b)

(y21)2\left(y^2-1\right)^2  

c)

(y1)2(y+1)2\left(y-1\right)^2\left(y+1\right)^2  

d)

(y2+1)(y1)(y+1)\left(y^2+1\right)\left(y-1\right)\left(y+1\right)  

202.

Simplify:

4d22÷8d+2\frac{4}{d^2-2}\div\frac{8}{d+2}  

a)

12(d2)\frac{1}{2\left(d-2\right)}  

b)

12(d+2)\frac{1}{2\left(d+2\right)}  

c)

2d2\frac{2}{d-2}  

d)

2d+2\frac{2}{d+2}  

203.

Simplify:

x25x+6x34x×2x28 y2+y\frac{x^2-5x+6}{x^3-4x}\times\frac{2x^2-8\ }{y^2+y}  

a)

2(y6)2\left(y-6\right)  

b)

2(y6)y2\frac{2\left(y-6\right)}{y^2}  

c)

2y2(y6)2y^2\left(y-6\right)  

d)

y62y2\frac{y-6}{2y^2}  

204.

Simplify:

y4y28y+16\frac{y-4}{y^2-8y+16}  

a)

y+4y+4  

b)

1y+4\frac{1}{y+4}  

c)

y4y-4  

d)

1y4 \frac{1}{y-4\ }  

205.

2x211x62x^2-11x-6  

a)

(2y1)(y+6)\left(2y-1\right)\left(y+6\right)  

b)

(2y+1)(y6)\left(2y+1\right)\left(y-6\right)  

c)

(2y12)(2y+1)\left(2y-12\right)\left(2y+1\right)  

d)

(2y1)(2y+12)\left(2y-1\right)\left(2y+12\right)  

206.
a)

4a/2

b)

2a

c)

3a/2

d)

4a/4

207.
a)

10a/10b

b)

10a/5b

c)

2a/b

d)

a/b

208.
a)

a/2

b)

3a/6

c)

8a/6

d)

7a/6

209.
a)

(2k-6l )/12

b)

(4k-12l )/24

c)

(k-3l)/6

d)

(3d-2l)/24

210.
a)

8m2/8n2

b)

13m/4n

c)

13m2/4n2

d)

8m/8n

211.
a)

4/p

b)

5/p

c)

14/p2

d)

4/p2

212.
a)

a2/6

b)

2a/3a

c)

3a/2a

d)

3/2

213.

Fully Factorise

5x2+20x+20

a)

5(x+2)(x+2)

b)

5(x-2)(x-2)

c)

5(x+2)(x-2)

d)

(5x+2)(x+2)

214.

Fully Factorise

2c2 + 2c - 84

a)

(c-6)(2c+14)

b)

(c+7)(2c-12)

c)

(c-4)(2c+21)

d)

2(c+7)(c-6)

215.

Fully Factorise

4x² - 20x + 25

a)

(4x - 25) (x -1)

b)

(2x + 5) (2x - 5)

c)

(2x - 5)²

d)

(4x - 5) (x - 5)

216.

Fully Factorise

3x2 - 75

a)

3( x + 5 ) ( x - 5 )

b)

Prime

c)

( x + 5 ) ( x - 5 )

d)

3( x - 5 ) ( x - 5 )

217.

Fully Factorise

16x2 + 18x + 12

a)

4(4x2 + 6x + 3)

b)

2(8x2 + 9x + 6)

c)

2x(8x + 9 + 3)

d)

x(16x + 18 + 12)

218.

Fully Factorise

21z2 - 70z + 49

a)

7(3z - 7)(z - 1)

b)

7(3z + 7)(z + 1)

c)

7(3z - 7)(z + 1)

d)

7(3z + 7)(z - 1)

219.

Fully Factorise

-2h2 + 4h + 70

a)

-2(h + 7)(h + 5)

b)

-2(h - 7)(h - 5)

c)

-2(h + 7)(h - 5)

d)

-2(h - 7)(h + 5)

220.

Fully Factorise

5g2 + 15g + 10

a)

5(g + 2)(g + 1)

b)

(5g + 10)(5g + 5)

c)

5(g + 5)(g + 2)

d)

5(g - 1)(g - 2)

221.

Fully Factorise

3x2+9x303x^2+9x-30  

a)

(3x+5)(x4)\left(3x+5\right)\left(x-4\right)  

b)

3(x+3)(x5)3\left(x+3\right)\left(x-5\right)  

c)

3(x2)(x+5)3\left(x-2\right)\left(x+5\right)  

d)

3(x2+3x10)3\left(x^2+3x-10\right)  

222.

Fully Factorise

2x210x+122x^2-10x+12  

a)

2(x3)(x2)2\left(x-3\right)\left(x-2\right)  

b)

2(x5)(x+1)2\left(x-5\right)\left(x+1\right)  

c)

2(x+2)(x3)2\left(x+2\right)\left(x-3\right)  

d)

2(x6)(x+5)2\left(x-6\right)\left(x+5\right)  

223.
Complete the formula
a³-b³=
a)
(a-b)(a²+ab+b²)
b)
(a+b)(a²-ab+b²)
c)
(a-b)(a²-ab+b²)
d)
(a+b)(a²+ab+b²)
224.

Complete the formula

a³+b³=

a)

(a-b)(a²+ab+b²)

b)

(a+b)(a²-ab+b²)

c)

(a-b)(a²-ab+b²)

d)

(a+b)(a²+ab+b²)

225.
Factor:   x+ 1
a)
(x + 1)3
b)
(x+1)(x- x + 1)
c)
(x - 1) (x2 + x - 1)
d)
(x + 1)(x2 - 2x + 1)
226.
Factor: 8x3 - 1
a)
(2x - 1)(4x2 + 2x + 1)
b)
(2x + 1)(4x2 - 2x + 1)
c)
(2x - 1)(4x2 - 2x - 1)
d)
(2x + 1)(4x2 +2x + 1)
227.
Factor
27x³-64
a)
(3x-4)(9x²+12x+16)
b)
(3x-4)(9x²-12x+16)
c)
(3x+4)(9x²-12x+16)
d)
(3x+4)(9x²+12x+16)
228.
Fully Factor the Following
8x3-27
a)
(2x+3)(4x2-6x+9)
b)
(2x-3)(4x2+6x+9)
c)
(2x-3)(4x2+6x-9)
d)
(2x-3)(2x2+6x+9)
229.
Factor using differencesum/ of cubes.  (use your notes!)
a³ + b³
a)
(a-b)(a²+ab+b²)
b)
(a+b)(a²-ab+b²)
c)
(a-b)(a²-ab+b²)
d)
(a+b)(a²+ab+b²)
230.

Which number is both a perfect square and a perfect cube?

a)

64

b)

27

c)

81

d)

16

231.

Identify if the expression can be factored as sum or difference of cubes:

3x3 + 24

a)

No

b)

Yes

c)

Yes, getting GCF first

d)

It is a sum of squares

232.
Factor:   x+ 1
a)
(x + 1)3
b)
(x+1)(x- x + 1)
c)
(x - 1) (x2 + x - 1)
d)
(x + 1)(x2 - 2x + 1)
233.
Factor:  27x3 + 8
a)
(3x + 2)(9x2 - 6x + 4)
b)
(9x + 2)(3x2 + 18x + 4)
c)
(3x2+4)(9x + 2)
d)
(27x + 8)(x2 - 216x + 64)
234.
Fully Factor the Following
216x3+125
a)
6(x+5)3
b)
(6x+5)3
c)
(6x+5)(6x2-30x+25)
d)
(6x+5)(36x2-30x+25)
235.
Factor this sum of cubes:
2x3 + 128
a)
2(x3 + 64)
b)
(x + 4)(x2 - 4x + 16)
c)
2(x - 4)(x2 + 4x + 16)
d)
2(x + 4)(x2 - 4x + 16)
236.
Factor this sum of cubes:
216x3 + 125
a)
6(x + 5)3
b)
(6x - 5)(36x2 + 30x + 25)
c)
(6x + 5)(6x2 - 30x + 25)
d)
(6x + 5)(36x2 - 30x + 25)
237.
x3 + 27
a)
(x + 3)(x2 - 3x + 9)
b)
(x + 2)(x2 - 2x + 4)
c)
(x + 4)(x2 - 4x + 16)
d)
(x - 3)(x2 + 3x + 9)
238.
x3 - 27
a)
(x - 4)(x2 + 4x + 16)
b)
(x + 3)(x2 - 4x + 16)
c)
(x - 1)(x2 + 1x + 1)
d)
(x - 3)(x2 + 3x + 9)
239.
8x3 + 27
a)
(3x - 2)(9x2 + 6x + 4)
b)
(3x - 1)(9x2 + 3x + 1)
c)
(2x + 3)(4x2 - 6x + 9)
d)
(2x - 1)(4x2 + 2x + 1)
240.
125x3 - 64
a)
(5x - 4)(25x2 + 20x + 16)
b)
(5x + 2)(25x2 - 10x + 4)
c)
(3x - 1)(9x2 + 3x + 1)
d)
(4x - 3)(16x2 + 12x + 9)
241.
x3 + 64
a)
(x + 3)(x2 - 3x + 9)
b)
(x + 5)(x2 - 5x + 25)
c)
(x + 4)(x2 - 4x + 16)
d)
(x - 4)(x2 + 4x + 16)
242.
x3 - 64
a)
(x - 4)(x2 + 4x + 16)
b)
(x - 3)(x2 + 3x + 9)
c)
(x - 5)(x2 + 5x + 25)
d)
(x + 4)(x2 - 4x + 16)
243.
125x3 + 8
a)
(5x - 4)(25x2 + 20x + 16)
b)
(5x + 2)(25x2 - 10x + 4)
c)
(4x + 1)(16x2 + 4x + 1)
d)
(4x - 3)(16x2 + 12x + 9)
244.
27x3 - 1
a)
(3x - 1)(9x2 + 3x + 1)
b)
(2x - 1)(4x2 + 2x + 1)
c)
(3x - 2)(9x2 + 6x + 4)
d)
(4x + 1)(16x2 + 4x + 1)
245.
x3 + 27
a)
(x + 3)(x2 - 3x + 9)
b)
(x + 2)(x2 - 2x + 4)
c)
(x + 4)(x2 - 4x + 16)
d)
(x - 3)(x2 + 3x + 9)
246.
8x3 - 1
a)
(2x - 1)(4x2 + 2x + 1)
b)
(3x - 1)(9x2 + 3x + 1)
c)
(3x - 2)(9x2 + 6x + 4)
d)
(x - 3)(4x2 - 6x + 9)
247.
64x3 + 1
a)
(4x - 3)(16x2 + 12x + 9)
b)
(3x - 1)(9x2 + 3x + 1)
c)
(2x - 1)(4x2 + 2x + 1)
d)
(4x + 1)(16x2 - 4x + 1)
248.

What is ALWAYS the first step when factoring?

a)

Look for the HCF

b)

Write a, b, and c

c)

Difference of squares

d)

Use FOIL

249.

We can't factor using difference of two square this

49x2 + 4y2. Why?

a)

Because 4 is not a perfect cubed number.

b)

Because 4 is not a perfect squared number.

c)

Because 49 is not a perfect squared number.

d)

Because we can't factor using difference of two squares if it is addition sign.

250.

Factor completely.

49x2 + 16

a)

( 7x + 4 ) ( 7x - 4 )

b)

( 7x + 4 ) ( 7x + 4 )

c)

( 7x - 4 ) 2

d)

cannot be factored (SUM of squares)

251.

Which of these can be factored using difference of two squares?

a)

144x2 - 49y2

b)

x2 + 4x - 12

c)

100x2 + 20x + 1

d)

14x - 16