3x^2-54=0

Solution for 3x^2-54=0 equation:

Simplifying
3x2 + -54 = 0

Reorder the terms:
-54 + 3x2 = 0

Solving
-54 + 3x2 = 0

Solving for variable 'x'.

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

Add '54' to each side of the equation.
-54 + 54 + 3x2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + 3x2 = 0 + 54
3x2 = 0 + 54

Combine like terms: 0 + 54 = 54
3x2 = 54

Divide each side by '3'.
x2 = 18

Simplifying
x2 = 18

Take the square root of each side:
x = {-4.242640687, 4.242640687}