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
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?
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
ANSWERS
1. II
2. III
3. I
4. III
5. I
6. III
7. I
8. III
9. III
10. I