Question

3(-2x-y)^2 equal to 3?
F.x=-2 and y=1
G.x=-2 and y=-3
H.x=-1 and y=3
I.x=-1 and y=-3

Answer 1

\[3\left( -2x-y \right)^2=3,\left( -2x-y \right)^2=\frac{ 3 }{ 3 }=1\]
now check one by one.