Question

Разложите на множители: (x+8y)(2x-5b)-8y(2x-5b)

Answer 1

2х²-5bx+16yx-40yb-16yx+40yb=2x²-5bx

Answer 2

(x+8y)(2x-5b)-8y(2x-5b)=(2x-5b)·(x+8y-8y)=x(2x-5b)=2x²-5bx;