Question

Find the zeros of the function.

f(x) = 9x^3 + 18 x^2 - 135x

Answer 1

factor out \(x\) then u have

\( 9x^3 + 18 x^2 - 135x=x(9x^2+18x-135)=0\) according to the zero product property

\(x=0\) or \( 9x^2+18x-135=0\)

second is a quadratic equation solve by factoring or quadratic equation formula

Answer 2

5 and -3

Answer 3

yeah

Answer 4

simplify quadratic by dividing by 9:
x^2 + 2x - 15= 0

Answer 5

(x - 3)(x + 5) = 0
x = 3 , -5

Answer 6

sorry .......... 3 , -5