NCERT Class IX Mathematics Chapter 2 Polynomials MCQ

1) $x^2-2x+1$ is a polynomial in:

a. One Variable

b. Two Variables

c. Three variable

d. None of the above

Answer: a

2) The coefficient of $x^2$ in $3x^3+2x^2-x+1$ is:

a. $1$

b. $2$

c. $3$

d. $-1$

Answer: b

3) A binomial of degree $20$ in the following is:

a. $20x+1$

b. $\frac{x}{20}+1$

c. $x^{20}+1$

d. $x^2+20$

Answer: c

4) The degree of $4x^3-12x^2+3x+9$ is

a. $0$

b. $1$

c. $2$

d. $3$

Answer: d

5) $x^2-x$ is ________ polynomial.

a. Linear

b. Quadratic

c. Cubic

d. None of the above

Answer: b

6) $x-x^3$ is a ________ polynomial.

a. Linear

b. Quadratic

c. Cubic

d. None of the above

Answer: c

7) $1+3x$ is a _________ polynomial.

a. Linear

b. Quadratic

c. Cubic

d. None of the above

Answer: a

8) The value of $f(x)=5x-4x^2+3$ when $x=-1$, is:

a. $3$

b. $-12$

c. $-6$

d. $6$

Answer: c

9) The value of $p(t)=2+t+2t^2-t^3$ when $t=0$ is

a. $2$

b. $1$

c. $4$

d. $0$

Answer: a

10) The zero of the polynomial $f(x)=2x+7$ is

a. $\frac{2}{7}$

b. $-\frac{2}{7}$

c. $\frac{7}{2}$

d. $-\frac{7}{2}$

Answer: d

11) What is the degree of the polynomial $\sqrt{3}$?

a. $0$

b. $1$

c. $\frac{1}{2}$

d. $2$

Answer: a

12) The degree of the constant polynomial is

a. $0$

b. $1$

c. $2$

d. $3$

Answer: a

13) One of the linear factors of $3x^2+8x+5$ is

a. $(x+1)$

b. $(x-2)$

c. $(x+2)$

d. $(x-4)$

Answer: a

14) The coefficient of $x$ in $7x^2+6x-2$ is

a. $2$

b. $6$

c. $-2$

d. $7$

Answer: b

15) Which of the following is an example of the quadratic polynomial?

a. $7x+3$

b. $2x^2+x-1$

c. $x+3x^3-9$

d. None of the above

Answer: b

16) Find the value of $7^2-5^2$.

a. $22$

b. $23$

c. $24$

d. $25$

Answer: c

17) If $x^2+kx+6=(x+2)(x+3)$ for all $k$, find the value of $k$.

a. $-1$

b. $1$

c. $3$

d. $5$

Answer: d

18) What is the zero of the polynomial $p(x)=cx+d$?

a. $-c$

b. $-d$

c. $-\frac{d}{c}$

d. $\frac{d}{c}$

Answer: c

19) The zero of the polynomial $p(x)=-5x+5$ is

a. $0$

b. $-5$

c. $-1$

d. $1$

Answer: d

20) Which of the following is a constant polynomial?

a. $4x+1$

b. $3$

c. $2x^2$

d. $6x+3$

Answer: b