3x^2-4=12

Solution for 3x^2-4=12 equation:

Simplifying
3x2 + -4 = 12

Reorder the terms:
-4 + 3x2 = 12

Solving
-4 + 3x2 = 12

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 3x2 = 12 + 4

Combine like terms: -4 + 4 = 0
0 + 3x2 = 12 + 4
3x2 = 12 + 4

Combine like terms: 12 + 4 = 16
3x2 = 16

Divide each side by '3'.
x2 = 5.333333333

Simplifying
x2 = 5.333333333

Take the square root of each side:
x = {-2.309401077, 2.309401077}