Question

add 2x(z-x-y)and 2y+(z-y-x)

Answer 1

HOLA MATEY ...❤✌️✌️

2x(z-x-y) + 2y+ (z-y-x)
= (2xz - 2x^2 -2xy ) +( y + z - x)
= 2xz -2x^2 -2xy + y + z - x.

Answer 2

2x(z-x-y) +{2y+(z-y-x)}

=2xz-2x^2-2xy+{2y+z-y-x}

=2xz -2x^2-2xy +{2y-y + z-x}

=2xz -2x^2-2xy +{y + z-x}

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