256=4x^2

Solution for 256=4x^2 equation:

Simplifying
256 = 4x2

Solving
256 = 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.
256 + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
256 + -4x2 = 0

Add '-256' to each side of the equation.
256 + -256 + -4x2 = 0 + -256

Combine like terms: 256 + -256 = 0
0 + -4x2 = 0 + -256
-4x2 = 0 + -256

Combine like terms: 0 + -256 = -256
-4x2 = -256

Divide each side by '-4'.
x2 = 64

Simplifying
x2 = 64

Take the square root of each side:
x = {-8, 8}