X^2-5=13

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Solution for X^2-5=13 equation: 


Simplifying
X2 + -5 = 13

Reorder the terms:
-5 + X2 = 13

Solving
-5 + X2 = 13

Solving for variable 'X'.

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

Add '5' to each side of the equation.
-5 + 5 + X2 = 13 + 5

Combine like terms: -5 + 5 = 0
0 + X2 = 13 + 5
X2 = 13 + 5

Combine like terms: 13 + 5 = 18
X2 = 18

Simplifying
X2 = 18

Take the square root of each side:
X = {-4.242640687, 4.242640687}

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