Question

X^3+2x^2-16x-32=0

Answer 1

X^3+2x^2-16x-32=0
x^2(x+2)-16(x+2)=0
(x^2-16)(x+2)=0
(x-4)(x+4)(x+2)=0
x=4 lub x=-4 lub x=-2

Answer 2

X(x^2+2x-16)-32 =0
(x-4)(x+4)(x+2)=0
x=4 lub x = -4
x= -2