Question

PLEASE HELP

Answer 1

Answer: x=1 or x=−3 or x=−9

Step-by-step explanation:

$x^{3} + 11x^{2} +15x-27 = 0$

Let's solve your equation step-by-step.

$x^{3} + 11x^{2} +15x-27 = 0$

Step 1: Factor left side of equation.

(x−1)(x+3)(x+9)=0

Step 2: Set factors equal to 0.

x−1=0 or x+3=0 or x+9=0

x=1 or x=−3 or x=−9

Answer:

x=1 or x=−3 or x=−9