Question

Решите уравнение (х+2)^3=x^3+8

Answer 1

(x+2)^3=x^3+8
x^3+6x^2+12x+8=x^3+8
6x^2+12x=0
6x*(x+2)=0
x*(x+2)=0
x=0
x+2=0
x=0
x=-2
x1=-2 
x2=0

Answer 2

X³+6x²+12x+8=x³+8
6x²+12x=0 ⇒ x1=0; x2=-2