Question

1. Which of the following is the numerical coefficient of 6x²y²?
I. 0
II. 6
III. x2
IV. y2
2. Which of the following is the numerical coefficient of -5x²y?
I. 5
II. -x
III. -5
IV. -y
3. pq+ r 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+2) (x+2)
I. x2 + 1/x2
II. x² +4x + 4
III. x² + 1/x2 + 2
IV. x2+ 1/x2 + 2x
7. Which of the following is obtained by subtracting x² - y²from y² - x²?
I. -2(x2-y2)
II. -2(x2 + y2)
III. 2(x2+ y2)
IV. 2(y²- x²)
8. What degree does x³ - x² - 8x+ 2 have?
I. 2
II. 3
III. 4
IV. 7
9. What is the value of 5x⁴- 3x³+ 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+a)?
I. x²+ abx + b²
II. x²+ (a+b)x - ab
III. x²+ (a+b)x - ab
IV. x²+ 2ax + a²​

Answer 1

Answer:

1. 6

2. -5

3. binomial

4. -4

5. (a=b)(a-b)

6. x² +4x + 4

7. 2y²-2x² or -2x²+2y²

8. 3

9. none of these

10. x2 + (b + a)x + ab

Answer 2

Answer:

Which of the following is the numerical coefficient of -5xy