Question

Solve the following quadratic equation for all values of xx in simplest form.
3, left parenthesis, x, plus, 2, right parenthesis, squared, equals, 48
3(x+2)
2
=
48

Answer 1

3(x + 2)^2 = 48

Divide both sides by 3:
(x + 2)^2 = 16

Take square roots:
x + 2 = ±4

So
x = -2 ± 4 ⇒ x = 2 or x = -6.