0=81x^2-25

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Solution for 0=81x^2-25 equation: 


Simplifying
0 = 81x2 + -25

Reorder the terms:
0 = -25 + 81x2

Solving
0 = -25 + 81x2

Solving for variable 'x'.

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

Add '-81x2' to each side of the equation.
0 + -81x2 = -25 + 81x2 + -81x2
Remove the zero:
-81x2 = -25 + 81x2 + -81x2

Combine like terms: 81x2 + -81x2 = 0
-81x2 = -25 + 0
-81x2 = -25

Divide each side by '-81'.
x2 = 0.3086419753

Simplifying
x2 = 0.3086419753

Take the square root of each side:
x = {-0.555555556, 0.555555556}

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