FACTORISATION Class VIII (2019 -20)

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Quiz 1 Made by Mrs. Pintu Prasad

1. The irreducible factorisation of 3a^3 + 6a is

2 points

(a)3a (a^2 + 2)

(b) 3 (a^3 + 2)

(d) 3 × a × a × a + 2 × 3 × a

Clear selection

2. a ( b + c) = ab + ac is

2 points

(a)commutative property

(b) distributive property

(d) closure property

Clear selection

3. The representation of an expression as the product of itsfactors is called

2 points

(a) Factorisation.

(b) Identities

(d) Equation

Clear selection

4. Common factor of 17abc, 34ab^2, 51a^2b is

2 points

(a) 17abc

(b) 17ab

(d) 17a^2b^2c

Clear selection

5. Factorised form of 23xy – 46x + 54y – 108 is

2 points

(a) (23x + 54) (y – 2)

(b) (23x + 54y) (y – 2)

(d) (23x + 54) (y + 2)

Clear selection

6. Factorised form of r^2 – 10r + 21 is

2 points

(a) (r – 1) (r – 4)

(b) (r – 7) (r – 3)

(d) (r + 7) (r + 3)

Clear selection

7. On dividing 57p^2qr by 114pq, we get

2 points

(a)1/4 pr

(b)3/4 pr

(d) 2pr

Clear selection

8. On dividing p (4p^2 – 16) by 4p (p – 2), we get

2 points

(a) 2p + 4

(b) 2p – 4

(d) p – 2

Clear selection

9. Number of factors of (a + b)^2 is

2 points

(a) 4

(b) 3

c) 2

(d) 1

Clear selection

10.The factors of x^2 – 4 are

2 points

(a) (x – 2), (x – 2)

(b) (x + 2), (x – 2)

(d) (x – 4), (x- 4)

Clear selection

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