81x^2=15

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Solution for 81x^2=15 equation: 


Simplifying
81x2 = 15

Solving
81x2 = 15

Solving for variable 'x'.

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

Divide each side by '81'.
x2 = 0.1851851852

Simplifying
x2 = 0.1851851852

Take the square root of each side:
x = {-0.430331483, 0.430331483}

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