Question

1. Subtract 2x (z-x-y) from 2y (z-y-x)​

Answer 1

2x ( z - x - y ) - 2y ( z - y - x )

2 ( x - y ) ( z - y - x )

hope helpful for you

Answer 2

Answer:

2y(z-y-x)-2x(z-x-y)

=2yz-2y^2-2xy-2xz+2x^2+2xy

=2x^2-2y^2+2yz-2xz