Suresh Lecturer

Class 10 Maths Quiz

Chapter 2 : Polynomials

2786

1. 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

2775

2. Which one is polynomial?

$\sqrt{x}+1$

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

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

$x^{3}+1$

2771

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

-2

-8

2766

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

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

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

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

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

2776

5. Which one is polynomial?

$1+\sqrt{x}$

$x^{2}+1$

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

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

2781

6. 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

$\frac{2}{5}$

2773

7. Which one is polynomial?

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

$\sqrt{x}+2$

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

$x^{3}+1$

2768

8. 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

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

Yes

cannot be determined

None of these

2769

10. The zeros of $x^{2}+7 x+10$ are:

$-5,-2$

2,5

$-2,5$

$-5,2$

2765

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

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

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

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

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

2783

12. 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

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13. The zeros of quadratic polynomial $4 x^{2}+87 x+125$ are:

Both positive

Both negative

one negative, one positive

Equal

2778

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

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

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

$5,-5$

None of these

2772

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

-2

-8