X(x+2)-(x+2)(x²-2x+4)-2x+4x=0

Question

X(x+2)-(x+2)(x²-2x+4)-2x+4x=0

Comments

x*(x+2)-(x+2)*(x²-2x+4)-2x+4x=0 Наверное -2х²+4х?

Answer 1

X^2+2x-(x^3-2x^2+4x+2x^2-4x+8)-2x+4x
x^2+2x-x^3+2x^2-4x-2x^2+4x-8-2x+4x
x^2-x^3-8+4x