0=x^2-5-13

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Solution for 0=x^2-5-13 equation: 


Simplifying
0 = x2 + -5 + -13

Reorder the terms:
0 = -5 + -13 + x2

Combine like terms: -5 + -13 = -18
0 = -18 + x2

Solving
0 = -18 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
0 + -1x2 = -18 + x2 + -1x2
Remove the zero:
-1x2 = -18 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1x2 = -18 + 0
-1x2 = -18

Divide each side by '-1'.
x2 = 18

Simplifying
x2 = 18

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

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