-7-8x^2=-591

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Solution for -7-8x^2=-591 equation: 


Simplifying
-7 + -8x2 = -591

Solving
-7 + -8x2 = -591

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + -8x2 = -591 + 7

Combine like terms: -7 + 7 = 0
0 + -8x2 = -591 + 7
-8x2 = -591 + 7

Combine like terms: -591 + 7 = -584
-8x2 = -584

Divide each side by '-8'.
x2 = 73

Simplifying
x2 = 73

Take the square root of each side:
x = {-8.544003745, 8.544003745}

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