Select all of the roots of x3 2x2 – 16x– 32. –1 –2 –4 1 4 5

In order to find the roots of the cubic equations by graphing you have to follow those steps

we have

we know that

The roots of the function are the values of x when the value of the function is equal to zero

Using a graphing tool

see the attached figure

The roots are

therefore

the answer is

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

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step-by-step explanation:

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80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !