3x^2-4=64

Solution for 3x^2-4=64 equation:

Simplifying
3x2 + -4 = 64

Reorder the terms:
-4 + 3x2 = 64

Solving
-4 + 3x2 = 64

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 = 64 + 4

Combine like terms: -4 + 4 = 0
0 + 3x2 = 64 + 4
3x2 = 64 + 4

Combine like terms: 64 + 4 = 68
3x2 = 68

Divide each side by '3'.
x2 = 22.66666667

Simplifying
x2 = 22.66666667

Take the square root of each side:
x = {-4.760952286, 4.760952286}