-500=x^2-x

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Solution for -500=x^2-x equation:


Simplifying
-500 = x2 + -1x

Reorder the terms:
-500 = -1x + x2

Solving
-500 = -1x + x2

Solving for variable 'x'.

Reorder the terms:
-500 + x + -1x2 = -1x + x + x2 + -1x2

Combine like terms: -1x + x = 0
-500 + x + -1x2 = 0 + x2 + -1x2
-500 + x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-500 + x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
500 + -1x + x2 = 0

Move the constant term to the right:

Add '-500' to each side of the equation.
500 + -1x + -500 + x2 = 0 + -500

Reorder the terms:
500 + -500 + -1x + x2 = 0 + -500

Combine like terms: 500 + -500 = 0
0 + -1x + x2 = 0 + -500
-1x + x2 = 0 + -500

Combine like terms: 0 + -500 = -500
-1x + x2 = -500

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -500 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -500 + 0.25

Combine like terms: -500 + 0.25 = -499.75
0.25 + -1x + x2 = -499.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -499.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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