x^2+125x-180=0

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Solution for x^2+125x-180=0 equation:


Simplifying
x2 + 125x + -180 = 0

Reorder the terms:
-180 + 125x + x2 = 0

Solving
-180 + 125x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '180' to each side of the equation.
-180 + 125x + 180 + x2 = 0 + 180

Reorder the terms:
-180 + 180 + 125x + x2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + 125x + x2 = 0 + 180
125x + x2 = 0 + 180

Combine like terms: 0 + 180 = 180
125x + x2 = 180

The x term is 125x.  Take half its coefficient (62.5).
Square it (3906.25) and add it to both sides.

Add '3906.25' to each side of the equation.
125x + 3906.25 + x2 = 180 + 3906.25

Reorder the terms:
3906.25 + 125x + x2 = 180 + 3906.25

Combine like terms: 180 + 3906.25 = 4086.25
3906.25 + 125x + x2 = 4086.25

Factor a perfect square on the left side:
(x + 62.5)(x + 62.5) = 4086.25

Calculate the square root of the right side: 63.923782742

Break this problem into two subproblems by setting 
(x + 62.5) equal to 63.923782742 and -63.923782742.

Subproblem 1

x + 62.5 = 63.923782742 Simplifying x + 62.5 = 63.923782742 Reorder the terms: 62.5 + x = 63.923782742 Solving 62.5 + x = 63.923782742 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-62.5' to each side of the equation. 62.5 + -62.5 + x = 63.923782742 + -62.5 Combine like terms: 62.5 + -62.5 = 0.0 0.0 + x = 63.923782742 + -62.5 x = 63.923782742 + -62.5 Combine like terms: 63.923782742 + -62.5 = 1.423782742 x = 1.423782742 Simplifying x = 1.423782742

Subproblem 2

x + 62.5 = -63.923782742 Simplifying x + 62.5 = -63.923782742 Reorder the terms: 62.5 + x = -63.923782742 Solving 62.5 + x = -63.923782742 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-62.5' to each side of the equation. 62.5 + -62.5 + x = -63.923782742 + -62.5 Combine like terms: 62.5 + -62.5 = 0.0 0.0 + x = -63.923782742 + -62.5 x = -63.923782742 + -62.5 Combine like terms: -63.923782742 + -62.5 = -126.423782742 x = -126.423782742 Simplifying x = -126.423782742

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.423782742, -126.423782742}

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