Question

Ch-2 : Polynomials

1. A quadratic polynomial, whose zeores are -4 and -5, is

(a) x² - 9x + 20

(b) x² + 9x + 20

(c) x² - 9x - 20

(d) x² + 9x - 20

2. If one zero of the quadratic polynomial x² + 3x + k is 2, then the value of k is

(a) 10

(b) -10

(c) 5

(d) -5

3. Given that two of the zeroes of the cubic poly-nomial ax3 + bx² + cx + d are 0, the third zero is

4. The number of polynomials having zeroes as -2 and 5 is

(a) 1

(b) 2

(c) 3

(d) more than 3

5. The zeroes of the quadratic polynomial x² + px + p, p ≠ 0 are

(a) both equal

(b) both cannot be positive

(c) both unequal

(d) both cannot be negative

6. If x3 + 11 is divided by x² – 3, then the possible degree of remainder is

(a) 0

(b) 1

(c) 2

(d) less than 2

7. What is the number(s) of zeroes that a cubic polynomial has/have:

(a) 0

(b) 1

(c) 2

(d) 3

8. If p(x) is a polynomial of at least degree one and p(k) = 0, then k is known as

(a) value of p(x)

(b) zero of p(x)

(c) constant term of p{x)

(d) none of these

9. If graph of a polynomial does not intersects the x-axis but intersects y-axis in one point, then no. of zeroes of the polynomial is equal to

(a) 0

(b) 1

(c) 0 or 1

(d) none of these

10. A polynomial of degree n has

(a) only 1 zero

(b) at least n zeroes

(c) at most n zeroes

(d) more than n zeroes

11. The constant term in polynomial having zeroes as -2, -2 and 5 is -

(a) -2

(b) -4

(c) -20

(d) 20​

Answer 1

Answer:

1=b,

2=b

3=-b/a

4=b

5=c

6=b

7=c

8=c

9=c

10=b

11=b