Polynomial roots Quiz 1

Question 1

If the polynomial is $${x^2} - 8x + 15$$ , find the sum of the roots of a given polynomial, without doing a squaring method.

Accepted Answer

8

Answer

3

Answer

5

Answer

None of these

Question 2

Find the product of the roots, if the given polynomial is $$2{x^2} + 9x + 9$$.

Accepted Answer

$$\dfrac{9}{2}$$

Answer

$$ - \dfrac{3}{2}$$

Answer

$$3$$

Answer

$$ - \dfrac{1}{2}$$

Question 3

If the polynomial is $${x^2} + 5x + 6$$ at $$x = 6$$. Solve the polynomial.

Accepted Answer

72

Answer

100

Answer

80

Answer

70

Question 4

Check whether $$-4$$ is the root of the polynomial $${x^2} - 8x + 15$$ ?

Accepted Answer

No, -4 is not the root of the polynomial

Answer

Yes, -4 is the root of the polynomial

Answer

roots are complex

Answer

None of these

Question 5

If $$Rs.x$$ is given to Amit and double the amount of Amit and $$Rs.50$$ more is given to Rohan. Write the total amount given to both of them as a polynomial expression.

Accepted Answer

$${x^2} + x + 50$$

Answer

$$(2x + x) + 50$$

Answer

$$x + {(x + 50)^2}$$

Answer

None of these