x^2-55x-500=0

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Solution for x^2-55x-500=0 equation:


Simplifying
x2 + -55x + -500 = 0

Reorder the terms:
-500 + -55x + x2 = 0

Solving
-500 + -55x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '500' to each side of the equation.
-500 + -55x + 500 + x2 = 0 + 500

Reorder the terms:
-500 + 500 + -55x + x2 = 0 + 500

Combine like terms: -500 + 500 = 0
0 + -55x + x2 = 0 + 500
-55x + x2 = 0 + 500

Combine like terms: 0 + 500 = 500
-55x + x2 = 500

The x term is -55x.  Take half its coefficient (-27.5).
Square it (756.25) and add it to both sides.

Add '756.25' to each side of the equation.
-55x + 756.25 + x2 = 500 + 756.25

Reorder the terms:
756.25 + -55x + x2 = 500 + 756.25

Combine like terms: 500 + 756.25 = 1256.25
756.25 + -55x + x2 = 1256.25

Factor a perfect square on the left side:
(x + -27.5)(x + -27.5) = 1256.25

Calculate the square root of the right side: 35.443617197

Break this problem into two subproblems by setting 
(x + -27.5) equal to 35.443617197 and -35.443617197.

Subproblem 1

x + -27.5 = 35.443617197 Simplifying x + -27.5 = 35.443617197 Reorder the terms: -27.5 + x = 35.443617197 Solving -27.5 + x = 35.443617197 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27.5' to each side of the equation. -27.5 + 27.5 + x = 35.443617197 + 27.5 Combine like terms: -27.5 + 27.5 = 0.0 0.0 + x = 35.443617197 + 27.5 x = 35.443617197 + 27.5 Combine like terms: 35.443617197 + 27.5 = 62.943617197 x = 62.943617197 Simplifying x = 62.943617197

Subproblem 2

x + -27.5 = -35.443617197 Simplifying x + -27.5 = -35.443617197 Reorder the terms: -27.5 + x = -35.443617197 Solving -27.5 + x = -35.443617197 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27.5' to each side of the equation. -27.5 + 27.5 + x = -35.443617197 + 27.5 Combine like terms: -27.5 + 27.5 = 0.0 0.0 + x = -35.443617197 + 27.5 x = -35.443617197 + 27.5 Combine like terms: -35.443617197 + 27.5 = -7.943617197 x = -7.943617197 Simplifying x = -7.943617197

Solution

The solution to the problem is based on the solutions from the subproblems. x = {62.943617197, -7.943617197}

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