# Algebraic Expressions and Identities-MCQ

MULTIPLE CHOICE QUESTIONS
Algebraic expressions and Identities
1.  Which of the following is the numerical coefficient of x2y2?
I.   0
II.   1
III.   x2
IV.   y2
2.  Which of the following is the numerical coefficient of -5xy?
I.   5
II.   -x
III.   -5
IV.   -y
3.  pqr is what type of polynomial?
I.   Monomial
II.   Binomial
III.   Trimonial
IV.   None of these
4.  The value of x2 - 5 at x= -1 is-
I.   -2
II.   -1
III.   -4
IV.   -5
5.  a2-b2 is a product of
I.   (a+b)(a-b)
II.   (a+b)(a+b)
III.   (a-b)(a-b)
IV.   None of these
6.  Which of the following is the value of (x+ 1/x)2?
I.   x2 + 1/x2
II.   x2 - 1/x2
III.   x2 + 1/x2 + 2
IV.   x2+ 1/x2 + 2x
7.  Which of the following is obtained by subtracting x2-y2 from y2 - x2?
I.   -2(x2-y2)
II.   -2(x2 + y2)
III.   2(x2+ y2)
IV.   2(x2- y2)
8.  What degree does x3 - x2y2 - 8y2+ 2 have?
I.   2
II.   3
III.   4
IV.   7
9.  What is the value of 5x25 - 3x32 + 2x-12 at x=1?
I.   0
II.   2
III.   4
IV.   None of these
10.  What is the product of (x+a) and (x+b)?
I.   x2+ (a-b)x + ab
II.   x2 + (a+b)x - ab
III.   x2 + (a+b)x - ab
IV.   x2 + (a+b)x + ab