81x^2-.5625=0

Solution for 81x^2-.5625=0 equation:

Simplifying
81x2 + -0.5625 = 0

Reorder the terms:
-0.5625 + 81x2 = 0

Solving
-0.5625 + 81x2 = 0

Solving for variable 'x'.

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

Add '0.5625' to each side of the equation.
-0.5625 + 0.5625 + 81x2 = 0 + 0.5625

Combine like terms: -0.5625 + 0.5625 = 0.0000
0.0000 + 81x2 = 0 + 0.5625
81x2 = 0 + 0.5625

Combine like terms: 0 + 0.5625 = 0.5625
81x2 = 0.5625

Divide each side by '81'.
x2 = 0.006944444444

Simplifying
x2 = 0.006944444444

Take the square root of each side:
x = {-0.083333333, 0.083333333}