Suresh Lecturer

Class 10 Maths Quiz

Chapter 2 : Polynomials

2766

1. The zeros of $4 x^{2}+1-4 x$ are:

$\frac{1}{2}, \frac{1}{2}$

$\frac{-1}{2}, \frac{-1}{2}$

$1, \frac{1}{4}$

$\frac{-1}{4}, 1$

2778

2. The zeros of $x^{2}-5$ are :

$\sqrt{5},-\sqrt{5}$

$\sqrt{5}, \sqrt{5}$

$5,-5$

None of these

2777

3. The sum of zeros of quadratic equation $2 x^{2}-8 x+6$ is:

-4

-3

2771

4. The sum of zeros of quadratic equation $x^{2}-2 x-8$ is:

-2

-8

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5. The zeros of $3 x^{2}+1+4 x$ are:

$1, \frac{1}{3}$

$-1, \frac{-1}{3}$

$-1, \frac{1}{3}$

$-1, \frac{-1}{3}$

2787

6. Is $(3 x+10)$ is a factor of $9 x^{3}-27 x^{2}-100 x+300$ ?

Yes

cannot be determined

None of these

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7. The number of polynomials having zeros as -2 and 4 is/are:

More than 3

2775

8. Which one is polynomial?

$\sqrt{x}+1$

$\frac{1}{\dot{x}^{3}+1}$

$\frac{1}{x^{2}+1}$

$x^{3}+1$

2786

9. The zeros of $x^{2}+3 x-(b+2)(b-1)$ are:

$-(b+2),-(b-1)$

$(b+2),-(b-1)$

$-(b+2),(b-1)$

None of these

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10. If the zeros of the quadratic polynomial $a x^{2}+b x+c, c \neq 0$ are equal then,

$c$ and $b$ have same signs

$c$ and $b$ have opposite signs

$c$ and $a$ have same signs

$c$ and $a$ have opposite signs

2765

11. The zeros of $3 x^{2}-4-x$ are:

$1, \frac{-4}{3}$

$-1, \frac{4}{3}$

$-1, \frac{-4}{3}$

$1, \frac{4}{3}$

2781

12. If $\alpha, \beta$ are the zeros of the polynomial $2 x^{2}+5 x-10$, then the value of $\alpha \beta$ is:

$\frac{-5}{2}$

-5

$\frac{2}{5}$

2774

13. Which one is polynomial?

$\frac{1}{x+1}$

$x^{\frac{1}{3}}+2$

$\frac{1}{x^{2}+1}$

$x+\sqrt{2}$

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14. The zeros of $\sqrt{3} x^{2}+10 x+7 \sqrt{3}$ are:

$-\sqrt{3}, \frac{-7}{\sqrt{3}}$

$-\sqrt{3}, \frac{7}{\sqrt{3}}$

$\sqrt{3}, \frac{7}{\sqrt{3}}$

$\frac{7}{\sqrt{3}}, \sqrt{9}$

2773

15. Which one is polynomial?

$\frac{1}{x+1}$

$\sqrt{x}+2$

$\frac{1}{x^{2}+2 x+7}$

$x^{3}+1$