Question

Solve 4x2 = 12x + 40.

Answer 1

Bring it all onto one side:
4x^2 -12x -40 = 0

Take out the GCF
Then Factor

Answer 2

i believe the answer ur looking for is this:

Divide both sides by 4:
x² - 3x = 10

Subtract 10 from both sides to get everything on the left:
x² - 3x - 10 = 0

Factor:
(x - 5)(x + 2) = 0

Answer:
x = 5
or
x = -2