Question

(x-2)(x^2+2x+1)=4(x+1)

Answer 1

(x-2)(x+1)^2-4(x+1)=0
(x+1)((x-2)(x+1)-4))=0
x=-1
x^2-2-x-4=0
x^2-x-6=0
x2=3
x3=-2