180=2n*n-1

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Solution for 180=2n*n-1 equation: 


Simplifying
180 = 2n * n + -1

Multiply n * n
180 = 2n2 + -1

Reorder the terms:
180 = -1 + 2n2

Solving
180 = -1 + 2n2

Solving for variable 'n'.

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

Add '-2n2' to each side of the equation.
180 + -2n2 = -1 + 2n2 + -2n2

Combine like terms: 2n2 + -2n2 = 0
180 + -2n2 = -1 + 0
180 + -2n2 = -1

Add '-180' to each side of the equation.
180 + -180 + -2n2 = -1 + -180

Combine like terms: 180 + -180 = 0
0 + -2n2 = -1 + -180
-2n2 = -1 + -180

Combine like terms: -1 + -180 = -181
-2n2 = -181

Divide each side by '-2'.
n2 = 90.5

Simplifying
n2 = 90.5

Take the square root of each side:
n = {-9.513148795, 9.513148795}

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