X^2-2=9

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Solution for X^2-2=9 equation: 


Simplifying
X2 + -2 = 9

Reorder the terms:
-2 + X2 = 9

Solving
-2 + X2 = 9

Solving for variable 'X'.

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

Add '2' to each side of the equation.
-2 + 2 + X2 = 9 + 2

Combine like terms: -2 + 2 = 0
0 + X2 = 9 + 2
X2 = 9 + 2

Combine like terms: 9 + 2 = 11
X2 = 11

Simplifying
X2 = 11

Take the square root of each side:
X = {-3.31662479, 3.31662479}

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