The left hand is factored and real value of x obtained. The right hand side doesn't belong.
Solve for x over the real numbers:
-2 (x-4) (2 x-15) = 0
Divide both sides by -2:
(x-4) (2 x-15) = 0
Split into two equations:
x-4 = 0 or 2 x-15 = 0
Add 4 to both sides:
x = 4 or 2 x-15 = 0
Add 15 to both sides:
x = 4 or 2 x = 15
Divide both sides by 2:
Answer: | x = 4 or x = 15/2
