81n^2-1=8

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Solution for 81n^2-1=8 equation:


Simplifying
81n2 + -1 = 8

Reorder the terms:
-1 + 81n2 = 8

Solving
-1 + 81n2 = 8

Solving for variable 'n'.

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

Add '1' to each side of the equation.
-1 + 1 + 81n2 = 8 + 1

Combine like terms: -1 + 1 = 0
0 + 81n2 = 8 + 1
81n2 = 8 + 1

Combine like terms: 8 + 1 = 9
81n2 = 9

Divide each side by '81'.
n2 = 0.1111111111

Simplifying
n2 = 0.1111111111

Take the square root of each side:
n = {-0.333333333, 0.333333333}

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