Question

помогите пжжжжжжжжжжжжжжжжжж​

Answer 1

1. 128+2x^3= 2(64+x^3)

2. 3x-6y+x^2-4xy+4y^2=3(x-2y)+(x-2y)^2+(x-2y)(3+x-2y)

3.x^2+y^2+2xy+4x+4y+4=(x+y)^2+4(x+y)+4=(x+y)(x+y+8)