x^2=5x-100

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Solution for x^2=5x-100 equation:


Simplifying
x2 = 5x + -100

Reorder the terms:
x2 = -100 + 5x

Solving
x2 = -100 + 5x

Solving for variable 'x'.

Reorder the terms:
100 + -5x + x2 = -100 + 5x + 100 + -5x

Reorder the terms:
100 + -5x + x2 = -100 + 100 + 5x + -5x

Combine like terms: -100 + 100 = 0
100 + -5x + x2 = 0 + 5x + -5x
100 + -5x + x2 = 5x + -5x

Combine like terms: 5x + -5x = 0
100 + -5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-100' to each side of the equation.
100 + -5x + -100 + x2 = 0 + -100

Reorder the terms:
100 + -100 + -5x + x2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -5x + x2 = 0 + -100
-5x + x2 = 0 + -100

Combine like terms: 0 + -100 = -100
-5x + x2 = -100

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -100 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -100 + 6.25

Combine like terms: -100 + 6.25 = -93.75
6.25 + -5x + x2 = -93.75

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -93.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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