Question

solve for x
(x + 7)(x − 5)/2 = 32

Answer 1

In order to solve for x, you need to find the roots, so you need to make the right side zero.
(x+7)(x-5)=64
x^2+7x-5x-35=64
x^2+2x-99=0
After making it zero, you can just factor the equation, to get the answer.
(x-9)(x+11)=0
x=9,-11