Question

Find the zeros of the function.

f(x) = 4x^3 - 12x^2 - 40x

Answer 1

so solve for x when f(x)=0

so just factor it

Answer 2

0.- and 2

Answer 3

**0 -5 and 2

Answer 4

right, i think, im doing this all in my head, its not easy i tell you

Answer 5

did i get the positive and negatives

Answer 6

oh wait its wrong

Answer 7

first factor it out and show me it

Answer 8

ya i just did it again and got o,5 and -2

Answer 9

yea thats better