Which are real zeros of this function x^3+2x^2-9x-18

a 1,2,3

b 3,-3,2

c 2,3,-6

d 1,-1,18

e - 2,3,-3

To solve the problem shown above, you must follow the proccedure shown below:

1. You the following polynomial of degree 3:

x^3+2x^2-9x-18

2. When you factor it, you obtain:

(x+2) (x-3) (x+3) = 0

3. Then, you obtain:

x1=-2

x2=3

x3=-3

4. Therefore, the correct answer is the last option (option e), which is shown below:

e) - 2,3,-3