500=3.55x^2

Solution for 500=3.55x^2 equation:

Simplifying
500 = 3.55x2

Solving
500 = 3.55x2

Solving for variable 'x'.

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

Add '-3.55x2' to each side of the equation.
500 + -3.55x2 = 3.55x2 + -3.55x2

Combine like terms: 3.55x2 + -3.55x2 = 0.00
500 + -3.55x2 = 0.00

Add '-500' to each side of the equation.
500 + -500 + -3.55x2 = 0.00 + -500

Combine like terms: 500 + -500 = 0
0 + -3.55x2 = 0.00 + -500
-3.55x2 = 0.00 + -500

Combine like terms: 0.00 + -500 = -500
-3.55x2 = -500

Divide each side by '-3.55'.
x2 = 140.8450704

Simplifying
x2 = 140.8450704

Take the square root of each side:
x = {-11.867816581, 11.867816581}