That answer is incorrect and it’s false
You should use this app called desmos to solve this but its the last option
Divide both sides by -5
Sqrt(x) = 3
We want to isolate x to solve for it. The opposite of a square root is a square, so square both sides.
x = 9
It can't be -9 because the square root of negative numbers are not real numbers.
Is it SV squared? Or times 2