-3x^2-4+8=0

Solution for -3x^2-4+8=0 equation:

Simplifying
-3x2 + -4 + 8 = 0

Reorder the terms:
-4 + 8 + -3x2 = 0

Combine like terms: -4 + 8 = 4
4 + -3x2 = 0

Solving
4 + -3x2 = 0

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 = 0 + -4

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

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

Divide each side by '-3'.
x2 = 1.333333333

Simplifying
x2 = 1.333333333

Take the square root of each side:
x = {-1.154700538, 1.154700538}