Factorisation, Chapter 14 Class 8 Maths MCQs

1. Which of the following is the common factor of

?

(a) 7

(b) xy

(c) 7 xy

(d) none of these

Question 1 of 15

2. Which of the following arc the factors of

(a) (x + l) (x – I)

(b) (1 – x) (1 + x)

(c) (1 – x) (1 – x)

(d) (1 + x) (1 + x)

Question 2 of 15

3. Which of the following is the common factor of: 5xy, 3pqr and 40 xyz?

(a) 5

(b) 0

(c) xy

(d) 1

Question 3 of 15

4. Which of the following is quotient obtained on dividing

(a) 6 Yz

(b) –6 yz

(c) 6 x

(d) 6 xy

Question 4 of 15

5. Which of the following is quotient obtained on dividing

Question 5 of 15

6. Which of the following are the factors of a2 + ab + bc + ca

(a) ab – a – b + 1 = (1 – a)(1 – b)

(b) ab – a – b + 1 = (a – 1)(b – 1)

(c) ab – a – b + 1 = (1 – a)(b – 1)

(d) ab – a – b + 1 = (a – 1)(1 – b)

Question 6 of 15

7. Which of the following are the factors of a2 + ab +bc + ca

(a) (b + c) (c + a)

(b) (a + b) (a + c)

(c) a(a + b + c)

(d) (a + b) (b + c)

Question 7 of 15

8. Which of the following is equal to

(a) x(1 – 15x) (1 + 15x)

(b) x(x – 15) (x + 15)

(c) x(1 – 15x) (1 – 15x)

(d) x(1 + 15x) (1 – 15x)

Question 8 of 15

9. Which of the following is the factorisation of

Question 9 of 15

10. (y – x) (y + x) is equal to which of the following:

Question 10 of 15

11. Factorise : 6xy – 4y + 6 – 9x.

a. (2y – 3)

b. (3x – 2)

c. (3x – 2) (2y – 3)

d. (2x – 3) (3y – 2)

Question 11 of 15

12. Find the common factors of 12x, 36.

a. 12x

b. x

c. 36

d. 12

Question 12 of 15

13. When we factorise an expression, we write it as a ________ of factors.

a. None of these

b. sum

c. product

d. difference

Question 13 of 15

14. Find and correct the errors in the following mathematical statements. 4 (x – 5) = 4x – 5

a. 4 (x – 5) = 4x – 20

b. None of these

c. 4 (x – 5) = 4x – 16

d. 4 (x – 5) = 4x – 24

Question 14 of 15

15. Divide as directed: 26xy (x + 5) (y – 4) ÷ 13x (y – 4)

a. (x + 5)

b. 2y (x + 5)

c. 2y

d. None of these

Question 15 of 15