Select all of the roots of x3 + 2x2 – 16x– 32. –1

–2

–4

1

4

5

The roots are -2,-4 and 4

B, C and E are correct.

Step-by-step explanation:

Given:

We are given a cubic polynomial. We have to find the roots of the polynomial. Roots are the x-intercept of polynomial.

First we will set the polynomial to 0 and solve for x

Now, we will set each factor to zero and solve for x

Hence, The roots are -2,-4 and 4