Answer:
7.5
You know, you can just use a calculator.
Answer:
i dont know sorry
Step-by-step explanation:
Hello,
Assume x the side of the square.
(x+7)²=4x²
==> ((x+7)-2x)((x+7)+2x)=0
==> (-x+7)(3x+7)=0
==> x=7 or x=-7/3 (to exclude since side must be positive)
Proof:
(7+7)²=196
4*49=196
You got it right because you solved it correctly
You should go ask your teach because i am not sure
