-500=120x-x^2

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Solution for -500=120x-x^2 equation:


Simplifying
-500 = 120x + -1x2

Solving
-500 = 120x + -1x2

Solving for variable 'x'.

Reorder the terms:
-500 + -120x + x2 = 120x + -120x + -1x2 + x2

Combine like terms: 120x + -120x = 0
-500 + -120x + x2 = 0 + -1x2 + x2
-500 + -120x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-500 + -120x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '500' to each side of the equation.
-500 + -120x + 500 + x2 = 0 + 500

Reorder the terms:
-500 + 500 + -120x + x2 = 0 + 500

Combine like terms: -500 + 500 = 0
0 + -120x + x2 = 0 + 500
-120x + x2 = 0 + 500

Combine like terms: 0 + 500 = 500
-120x + x2 = 500

The x term is -120x.  Take half its coefficient (-60).
Square it (3600) and add it to both sides.

Add '3600' to each side of the equation.
-120x + 3600 + x2 = 500 + 3600

Reorder the terms:
3600 + -120x + x2 = 500 + 3600

Combine like terms: 500 + 3600 = 4100
3600 + -120x + x2 = 4100

Factor a perfect square on the left side:
(x + -60)(x + -60) = 4100

Calculate the square root of the right side: 64.031242374

Break this problem into two subproblems by setting 
(x + -60) equal to 64.031242374 and -64.031242374.

Subproblem 1

x + -60 = 64.031242374 Simplifying x + -60 = 64.031242374 Reorder the terms: -60 + x = 64.031242374 Solving -60 + x = 64.031242374 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '60' to each side of the equation. -60 + 60 + x = 64.031242374 + 60 Combine like terms: -60 + 60 = 0 0 + x = 64.031242374 + 60 x = 64.031242374 + 60 Combine like terms: 64.031242374 + 60 = 124.031242374 x = 124.031242374 Simplifying x = 124.031242374

Subproblem 2

x + -60 = -64.031242374 Simplifying x + -60 = -64.031242374 Reorder the terms: -60 + x = -64.031242374 Solving -60 + x = -64.031242374 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '60' to each side of the equation. -60 + 60 + x = -64.031242374 + 60 Combine like terms: -60 + 60 = 0 0 + x = -64.031242374 + 60 x = -64.031242374 + 60 Combine like terms: -64.031242374 + 60 = -4.031242374 x = -4.031242374 Simplifying x = -4.031242374

Solution

The solution to the problem is based on the solutions from the subproblems. x = {124.031242374, -4.031242374}

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