Question

I need help! I might give brainliest to best answer!!!

Answer 1

Answer:

top equation is equivalent to A

middle equation is equivalent to C

bottom equation is equivalent to B

Step-by-step explanation:

idrk how to explain it without going into detail (like every little detail) so int the top one the -$7^{2}$ comes from the $3^{2}-10^{2}$ (because its $3^{2} -10^2$ and the answer it $-7^{2}$) and just do the same for the rest.

Answer 2

answer:

first one is A

second is C

third is B