-3x^2-6=-12

Solution for -3x^2-6=-12 equation:

Simplifying
-3x2 + -6 = -12

Reorder the terms:
-6 + -3x2 = -12

Solving
-6 + -3x2 = -12

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + -3x2 = -12 + 6

Combine like terms: -6 + 6 = 0
0 + -3x2 = -12 + 6
-3x2 = -12 + 6

Combine like terms: -12 + 6 = -6
-3x2 = -6

Divide each side by '-3'.
x2 = 2

Simplifying
x2 = 2

Take the square root of each side:
x = {-1.414213562, 1.414213562}