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 7x²y?
I. 5
II. -x
III. -5
IV. 7

3. pq+ r+s is what type of polynomial?
I. Monomial
II. Binomial
III. Trimonial
IV. None of these

4. The value of x² - 5 at x= 5 is-
I. 20
II. -1
III. 40
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 does7 x³ - x² - 8x+ 2 have?
I. 2
II. 3
III. 4
IV. 7

9. What is the value of x⁴- 3x³+ 2x-12 at x=-1?
I. 0
II. 1 2
III. 1 4
IV. -9

10. What is the product of (x+a) and (x+b) ?
I. x²+ abx + b²
II. x²+ (a+b)x + ab
III. x²+ (a+b)x - ab
IV. x²+ 2ax + a²​

Answer 1

pls brainaly as

Step-by-step explanation:

(1) -6

(2) 7

(3) trimonial

(4) 20

(5) (a+b) (a-b)

(6) x² +1/x2 +2

(7) 2(x2 +y2)

(8) 3

(9) 12

(10) x² +(a+b)x +ab

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