Question

Умножьте

1.(х+2)*(х-4)

2.y*(y+2)

Answer 1

 

$1)x^2-4x+2x-8=x^2-2x-8\ 2) y^2+2y$

 

Answer 2

1) =x2-4x+2x-8=x2-2x-8

2)=y2+2y