Free Printable mathematics exercise form 4

1.

Diberi persamaan kuadratik x²+ 3x - 18 = 0. Cari nilai-nilai x.

a)

x = 3, x = 6

b)

x = 3, x = -6

c)

x = -3, x = 6

d)

x = -3, x = -6

2.

Diberi persamaan kuadratik x²- 2x - 8 = 0. Cari nilai-nilai x.

a)

x = 2, x = 4

b)

x = 2, x = -4

c)

x = -2, x = 4

d)

x = -2, x = -4

3.

Diberi persamaan kuadratik x²- 13x + 42 = 0. Cari nilai-nilai x.

a)

x = 7, x = 6

b)

x = 7, x = -6

c)

x = -7, x = 6

d)

x = -7, x = -6

4.

Diberi persamaan kuadratik x²+ 20x + 96 = 0. Cari nilai-nilai x.

a)

x = 8, x = 12

b)

x = 8, x = -12

c)

x = -8, x = 12

d)

x = -8, x = -12

5.

Diberi persamaan kuadratik 2x²+ 10x - 28 = 0. Cari nilai-nilai x.

a)

x = 2, x = 7

b)

x = 2, x = -7

c)

x = -2, x = 7

d)

x = -2, x = -7

6.

Diberi persamaan kuadratik 2x²-18x + 40 = 0. Cari nilai-nilai x.

a)

x = 4, x = 5

b)

x = 4, x = -5

c)

x = -4, x = 5

d)

x = -, x = -5

7.

Diberi persamaan kuadratik 2x²+ 6x - 56 = 0. Cari nilai-nilai x.

a)

x = 7, x = 4

b)

x = 7, x = -4

c)

x = -7, x = 4

d)

x = -7, x = -4

8.

Diberi persamaan kuadratik 2x²+ 32x + 126 = 0. Cari nilai-nilai x.

a)

x = 7, x = 9

b)

x = 7, x = -9

c)

x = -7, x = 9

d)

x = -7, x = -9

9.

Diberi persamaan kuadratik 6x²+ 36x + 48 = 0. Cari nilai-nilai x.

a)

x = 2, x = 4

b)

x = 2, x = -4

c)

x = -2, x = 4

d)

x = -2, x = -4

10.

Diberi persamaan kuadratik 3x²+ 6x - 45 = 0. Cari nilai-nilai x.

a)

x = 3, x = 5

b)

x = 3, x = -5

c)

x = -3, x = 5

d)

x = -3, x = -5

11.

Kembangkan $2a\left(3-4a\right)$

a)

$6a-8a^2$

b)

$6a-4a^2$

c)

$6a-8a$

12.

$\left(5x-3\right)^2$

a)

$25x^2+9$

b)

$25x^2-30x-9$

c)

$25x^2-15x-9$

d)

$25x^2-30x+9$

13.

Faktorkan selengkapnya
$x^2-6x+9$

a)

$\left(x+3\right)\left(x-3\right)$

b)

$\left(x-3\right)\left(x-3\right)$

c)

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

d)

$\left(x+3\right)^2$

14.

Faktorkan selengkapnya kepada bentuk termudah

$4xm^2-12m$

a)

$4\left(xm^2-m\right)$

b)

$4m\left(x^2-3\right)$

c)

$4x\left(m^2-3m\right)$

d)

$4m\left(xm-3\right)$

15.

Kembangkan 6q (q+4)

a)

6q² + 24q

b)

6q²+ 10q

c)

6q²+ q + 24

d)

6q + 24

16.

Bentukkan persamaan kuadratik
(8 + h)(2h - 7) =

a)

2h² - 9h + 56

b)

2h² + 9h - 56

c)

h² + 9h + 56

d)

2h² + 8h - 56

17.

Selesaikan persamaan kuadratik
2k² + 9k + 4 = 0

a)

(x + 1)(x - 4) = 0

b)

(2x - 1)(x - 4) = 0

c)

(2x + 1)(x + 4) = 0

d)

(x + 3)(x + 4) = 0

18.

Faktorkan persamaan kuadratik
x² + 6x + 8

a)

(x + 6)(x - 2)

b)

(x - 2)(x - 4)

c)

(x + 1)(x + 3)

d)

(x + 2)(x + 4)

19.

Selesaikan persamaan
x(2x + 5) = 3

a)

(2x -1)(x - 3) = 0
x = 0.5, x = 3

b)

(2x + 1)(x + 3) = 0
x = -0.5, x = -3

c)

(2x + 5)(x + 3) = 0
x = -5/2, x = -3

d)

(x + 3)(2x - 1) = 0
x = -3, x = 0.5

20.

Mariam menggunting sekeping kad manila seluas 32a²b cm² kepada beberapa keping kad kecil seluas 8ab cm² sekeping. Berapakah bilangan kad kecil yang terhasil?

a)

4a²b

b)

4a

c)

4ab

d)

4a³b²

21.

Sebuah segi empat tepat PQRS mempunyai lebar 3y cm dan panjang 5xy cm. Cari luas segi empat tepat itu dalam cm²

a)

15xy

b)

8xy

c)

15xy²

d)

8xy²

22.

Ringkaskan hasil darab berikut:
-7 x r x s x r

a)

-7rs

b)

-7r²s

c)

-7rsr

d)

-7s²r

23.

Faktorkan selengkapnya
3a + 15 – ab – 5b

a)

(3 + b)(a - 5)

b)

(3 - b)(a +5)

c)

(b+3)(5-a)

d)

(3b)(5a)

mathematics exercise form 4

Total questions: 23

Worksheet time: 43mins

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