13-8x^2=-1139

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Solution for 13-8x^2=-1139 equation: 


Simplifying
13 + -8x2 = -1139

Solving
13 + -8x2 = -1139

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -8x2 = -1139 + -13

Combine like terms: 13 + -13 = 0
0 + -8x2 = -1139 + -13
-8x2 = -1139 + -13

Combine like terms: -1139 + -13 = -1152
-8x2 = -1152

Divide each side by '-8'.
x2 = 144

Simplifying
x2 = 144

Take the square root of each side:
x = {-12, 12}

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