# Algebraic Expressions and Identities MCQ Questions for Class 8 Math’s Chapter 9 with Answers

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(A) 14pqr
(B) 2p+4q+8r
(C) 64pqr
(D)64

(A) 7,x,y
(B) x,y
(C) 7,x
(D)7,y

(A) 1
(B) 2
(C) 10
(D)20.

## Q4. The expression 4xy + 7 is in

(A) one variable
(B) two variables
(C) no variable
(D)none of these.

## Q5. If x = 3 is solution of x² + kx + 15, value of k is

(A) k = -8, x = 3
(B) k = 8, x = 5
(C) k = 6, x = 5
(D)None of above

## Q6. What kind of polynomial is -5abc?

(A) Monomial
(B) Binomial
(C) Trinonial
(D)None of the above

(A) x, 3x
(B) x, 2y
(C) 2y, 6xy
(D)3x, 2y

(A) 1/2
(B) 3
(C) 3x-2
(D)2

(A) 5
(B) x
(C) 5
(D)y

(A) x, 3x
(B) x, 2y
(C) 2y, 6xy
(D)3x, 2y

(A) 1
(B) 2
(C) 3
(D)5.

(A) 5
(B) 10
(C) 25
(D)-5.

(A) a+5
(B) 1
(C) 6
(D)5

(A) 1
(B) 2
(C) 3
(D)4

(A) 1
(B) 3
(C) 4
(D)5

(A) – 7x
(B) 21x
(C) 7x
(D)-21x

(A) 7x, -5yx
(B) 5x², -5yx
(C) 5x², -9x²
(D)7x, 7y

(A) l³m³
(B) 2l³m³
(C) 4l³m³
(D)6l³m³

## Q19. The value of (x + y) (x + y) + (y – z) (y + z) + (z – x) (z + x) is equal to

(A) 3x²
(B) 3y²
(C) 3z²
(D)0

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