3(x^2-4)=132

Solution for 3(x^2-4)=132 equation:

Simplifying
3(x2 + -4) = 132

Reorder the terms:
3(-4 + x2) = 132
(-4 * 3 + x2 * 3) = 132
(-12 + 3x2) = 132

Solving
-12 + 3x2 = 132

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '12' to each side of the equation.
-12 + 12 + 3x2 = 132 + 12

Combine like terms: -12 + 12 = 0
0 + 3x2 = 132 + 12
3x2 = 132 + 12

Combine like terms: 132 + 12 = 144
3x2 = 144

Divide each side by '3'.
x2 = 48

Simplifying
x2 = 48

Take the square root of each side:
x = {-6.92820323, 6.92820323}