ALGEBRAIC EXPRESSIONS & IDENTITIES Class VIII

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QUIZ 1 Made by Mrs. Pintu Prasad

1. The product of a monomial and a binomial is a

2 points

(a) monomial

(b) binomial

(d) none of these

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2. In a polynomial, the exponents of the variables are always

2 points

(a) integers

(b) positive integers

(d) non-positive integers

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3. Which of the following is correct?

2 points

a) (a – b)^2 = a^2 + 2ab – b^2

(b) (a – b)^2 = a^2 – 2ab + b^2

(d) (a + b)^2 = a^2 + 2ab – b^2

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4. The sum of –7pq and 2pq is

2 points

(a) –9pq

(b) 9pq

(d) – 5pq

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5. Sum of a – b + ab, b + c – bc and c – a – ac is

2 points

(a) 2c + ab – ac – bc

(b) 2c – ab – ac – bc

(d) 2c – ab + ac + bc

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Option 1

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6. Volume of a rectangular box (cuboid) with length = 2ab, breadth =3ac and height = 2ac is

2 points

(a) 12a^3bc^2

(b) 12a^3bc

(d) 2ab +3ac + 2ac

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7. Coefficient of y in the term −y/3 is

2 points

(a) – 1

(b) – 3

(c)- 1/3

(d)1/3

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8. The value of (a + b)^2 + (a – b)^2 is

2 points

(a) 2a + 2b

(b) 2a – 2b

(d) 2a^2 – 2b^2

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9. The value of (a + b)^2 – (a – b)^2 is

2 points

(a) 4ab

(b) – 4ab

(d) 2a^2 – 2b^2

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10. Square of 3x – 4y is

2 points

(a) 9x^2 – 16y^2

(b) 6x^2 – 8y^2

(d) 9x^2 + 16y^2 – 24xy

Clear selection

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