X^2+8=90

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Solution for X^2+8=90 equation: 


Simplifying
X2 + 8 = 90

Reorder the terms:
8 + X2 = 90

Solving
8 + X2 = 90

Solving for variable 'X'.

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

Add '-8' to each side of the equation.
8 + -8 + X2 = 90 + -8

Combine like terms: 8 + -8 = 0
0 + X2 = 90 + -8
X2 = 90 + -8

Combine like terms: 90 + -8 = 82
X2 = 82

Simplifying
X2 = 82

Take the square root of each side:
X = {-9.055385138, 9.055385138}

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