Question

solve the following (2)Questions) add:2x (z-x-y) and 2y (z-y-x​

Answer 1

Answer:

2xz -4yx + 2yz -2x² - 2y²

Step-by-step explanation:

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

=2xz -2x² -2xy +2yz -2y² -2yx

= 2xz -2x² -2yx +2yz -2y² -2yx (as, -2xy = -2yx)

=2xz -2x² -2yx -2yx +2yz -2y²

=2xz -2x² -4yx +2yz - 2y²

= 2xz -4yx + 2yz -2x² - 2y²