posted by AwesomeGuy .
Find the inverse of the following quadratic equation. Hint: Complete the square first.
y = (x+7)^2 + 1
x+7 = ±√(y-1)
x = -7 ± √(y-1)
As you can see from the ±, there is no one inverse. You have to pick which branch of the parabola you want to use.