200=4x^2

Solution for 200=4x^2 equation:

Simplifying
200 = 4x2

Solving
200 = 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.
200 + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
200 + -4x2 = 0

Add '-200' to each side of the equation.
200 + -200 + -4x2 = 0 + -200

Combine like terms: 200 + -200 = 0
0 + -4x2 = 0 + -200
-4x2 = 0 + -200

Combine like terms: 0 + -200 = -200
-4x2 = -200

Divide each side by '-4'.
x2 = 50

Simplifying
x2 = 50

Take the square root of each side:
x = {-7.071067812, 7.071067812}