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Worksheets

Factoring Part 2

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Write the difference of two squares a2 - 36b2 as the product of two binomials.

a)

(a – b)(a – b)

b)

(a + 6b)(a – 6b)

c)

(a + 6b)(a + 6b)

d)

(a − 6b)(a − 6b)

2.

One of the factors of y2 - 25 is (y - 5) . What is the other factor?

a)

(y + 5)

b)

(y - 5)

c)

(y + 20)

d)

(y - 20)

3.

What is the factored form of x2 - 121y2?

a)

(x + y) (x - y)

b)

(x + 11y) (x + 11y)

c)

(x + 11y) (x - 11y)

d)

(x - 11y) (x - 11y)

4.

Each member of your group was asked to evaluate the two expressions, A = 4x2 – 81 and B = (2x – 9) (2x + 9) when x = 2. As a leader, which of the following responses from your group mates will you consider as the correct answer of your group: Ana: A > B Alice: A < B Anton: A = B Ariel: A not = B

a)

Ana

b)

Alice

c)

Anton

d)

Ariel

5.

Which of the following is a sum of two cubes?

a)

x3 + 4

b)

x3 + 8

c)

x2 + 1

d)

x2 - 1

6.

Which of the following DOES NOT have a perfect cube root?

a)

729b6

b)

412y3

c)

27m3

d)

8a12

7.

What is the factored form of 27a3 + 8b3 ?

a)

(3a + 2b)2

b)

(3a + 2b)(9a2 + 4b2)

c)

(3a + 2b)(9a2 - 12ab + 4b2)

d)

(3a + 2b)(9a2 - 6ab + 4b2)

8.

What are the factors of 729 - 8b6?

a)

(9 - 2b2) and (81 + 18b2 + 4b4)

b)

(9 + 2b2) and (81 + 18b2 + 4b4)

c)

(9 - 2b2) and (81 - 18b2 + 4b4)

d)

(9 + 2b2) and (81 - 18b2 + 4b4)

9.

Factor completely: 3x2 - 27

a)

3(x2 + 9)

b)

3(x2 - 9)

c)

(x + 3)(x - 3)

d)

3(x + 3)(x - 3)

10.

If factored completely, t3 + t2 – t – 1 is equal to _____.

a)

(t2 – 1)(t + 1)

b)

(t + 1)(t – 1)

c)

(t +1)2 (t – 1)

d)

(t – 1)2(t + 1)

11.

Factor completely the expression x2 – y2 + x – y.

a)

(x+ y)(x – y)

b)

(x + y)(x – y + 1)

c)

(x – y)(x + y + 1)

d)

(x – y)(x – y + 1)

12.

If two of the factors of (y4 - 16) are (y + 2) and (y - 2), what then is the other factor?

a)

(y2 - 1)

b)

(y2 + 2)

c)

(y2 + 4)

d)

(y2 - 4)

13.

Which of the following is factored completely?

a)

(a2 + b2) (a2 – b2)

b)

(a + b) (a – b)2

c)

5x2 + 15x – 10

d)

(3x + 6) + (x + y) (x – y)

14.

The complete factored form of 2x2 + 6x + 4 is ______.

a)

(2x + 4)(x + 1)

b)

2(x2 + 2x + 2)

c)

2(x + 2)(x + 1)

d)

(x + 2)(x + 1)

15.

The polynomial x3 + 11x2 + 10x, when factored completely yields the factors _______.

a)

(x + 1) and (x + 10)

b)

(x2 + 1) and (x + 10)

c)

x (x + 1)(x + 10)

d)

NONE OF THESE

16.

The volume of a rectangular prism is (125 + x3) cm3. If its height is (25 - 5x + x2) centimeters, what is the area of its base?

a)

(5 + x) cm2

b)

(25 + x) cm2

c)

(5 - x) cm2

d)

(25 - x) cm2

17.

If x3 – 64y3 candies are divided equally among (x – 4y) children, how many candies each child receive?

a)

A. x2 + 8xy + 16y2

b)

x2 – 8xy + 16y2

c)

x2 + 4xy + 16y2

d)

x2 – 4xy + 16y2

18.

If the area of the square patio is x2 + 8x + 16 , what are its length and width?

a)

(x - 2) and (x + 4)

b)

(x + 8) and (x + 8)

c)

(x - 4) and (x - 4)

d)

(x + 4) and (x + 4)

19.

The volume of a gas in a cylinder is 8a3 – 27b3. If the height of the cylinder is 2a – 3b cm, what is the area of the bottom of the cylinder?

a)

4a2 + 6ab + 9b2 cm2

b)

4a2 – 6ab – 9b2 cm2

c)

4a2 – 6ab + 9b2 cm2

d)

4a2 + 6ab – 9b2 cm2

20.

The Math club officers prepared two tarpaulins in celebration for the Mathematics month in their school. If the tarpaulins cost 12x2 – 14x – 10 pesos, and one tarpaulin costs 3x – 5 pesos, how much is the other tarpaulin?

a)

4x - 2

b)

4x - 10

c)

4x + 2

d)

4x + 10

21.

A circular garden has an area of (x2 + 6x + 9)π square meters. How long in meters is the distance of the entrance point to the fountain located at the center of the garden?

a)

x + 3

b)

x - 3

c)

x + 6

d)

x + 9

22.

What is the complete factored form of x4 – 16?

a)

(x2 + 4)(x2 – 4)

b)

(x2 + 4)(x + 2)(x – 2)

c)

(x2 + 4)(x – 2)( x – 2)

d)

(x2 + 4)( x+ 2)(x – 2)

23.

A circular garden has an area of (x2 + 6x + 9)π square meters. How long is the fencing material needed to enclose the entire garden?

a)

(2x – 6)π meters

b)

(2x + 6)π meters

c)

(2x + 12)π meters

d)

(2x + 18)π meters

24.

Mr. Peter is preparing to paint a rectangular wall with an area of (3x2 - 2x - 5) square meters. If the width of the wall is (x + 1) meters, what is its length in meters?

a)

3x - 5

b)

5x - 3

c)

3x + 5

d)

5x + 3

25.

Mr. Peter is preparing to paint a rectangular wall with an area of (3x2 - 2x - 5) square meters. If x = 2, what is the actual area of the wall to be painted?

a)

1 square meter

b)

2 square meters

c)

3 square meters

d)

4 square meters