0=3x^2-78

Solution for 0=3x^2-78 equation:

Simplifying
0 = 3x2 + -78

Reorder the terms:
0 = -78 + 3x2

Solving
0 = -78 + 3x2

Solving for variable 'x'.

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

Add '-3x2' to each side of the equation.
0 + -3x2 = -78 + 3x2 + -3x2
Remove the zero:
-3x2 = -78 + 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-3x2 = -78 + 0
-3x2 = -78

Divide each side by '-3'.
x2 = 26

Simplifying
x2 = 26

Take the square root of each side:
x = {-5.099019514, 5.099019514}