Question

помогите !!! разложите на множители 2x-9z(x-y)-2y

Answer 1

2x-9z*(x-y)-2y=2z-9zx+9zy-2y=2z-2y=2*(z-y)

Answer 2

2x-9z(x-y)-2y = 2x-2y-9z(x-y) = 2(x-y)-9z(x-y) = (x-y)(2-9z)