Question

Q2 Do as directed Add 2x(z-x-y) and 2y(z-y-x)
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Answer 1

Answer:

2xz-2x^2-2xy and 2yz - 2y^2-2yz

Step-by-step explanation:

2x will be mulyiplied by all variables written in bracket

and sign - is already there

for 2nd

2y will multiplied to all variables same as before

and sign is there too

Answer 2

Answer:

=2zx -2x square -2xy

=2yz -2y square -2xy

=2zx-2x square -2xy + 2yz -2y square -2xy

= -2x square -2y square +2yx +2yz