120=4x^2

Solution for 120=4x^2 equation:

Simplifying
120 = 4x2

Solving
120 = 4x2

Solving for variable 'x'.

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

Add '-4x2' to each side of the equation.
120 + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
120 + -4x2 = 0

Add '-120' to each side of the equation.
120 + -120 + -4x2 = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -4x2 = 0 + -120
-4x2 = 0 + -120

Combine like terms: 0 + -120 = -120
-4x2 = -120

Divide each side by '-4'.
x2 = 30

Simplifying
x2 = 30

Take the square root of each side:
x = {-5.477225575, 5.477225575}