Question

Simplify: (x+2)(x-2)(x+4)​

Answer 1

Answer:

x^3 + 4x^2- 4x-16

Step-by-step explanation:

Answer 2

Step-by-step explanation:

(x+2)(x-2)(x+4)

$( {x}^{2} - 2x + 2x - 4)(x + 4) \\ = ( {x}^{2} - 4)(x + 4) \\ = {x}^{3} + 4 {x}^{2} - 4x - 16$

Solutions for x:

x1 = 2

x2 = -4

x3 = -2