X^2-8=12

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Solution for X^2-8=12 equation: 


Simplifying
X2 + -8 = 12

Reorder the terms:
-8 + X2 = 12

Solving
-8 + X2 = 12

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 = 12 + 8

Combine like terms: -8 + 8 = 0
0 + X2 = 12 + 8
X2 = 12 + 8

Combine like terms: 12 + 8 = 20
X2 = 20

Simplifying
X2 = 20

Take the square root of each side:
X = {-4.472135955, 4.472135955}

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