Question

Разложите на множители.

а) x (x – y) + a (x – y)

Answer 1

x(x-y)+a(x-y)=((x(x-y)x-y))((a(x-y)(x+y)=2x(x+y)

Answer 2

x ( x - y ) + a (x - y )=x^2 - xy + ax - ay