x(x-500)=550

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Solution for x(x-500)=550 equation:


Simplifying
x(x + -500) = 550

Reorder the terms:
x(-500 + x) = 550
(-500 * x + x * x) = 550
(-500x + x2) = 550

Solving
-500x + x2 = 550

Solving for variable 'x'.

Reorder the terms:
-550 + -500x + x2 = 550 + -550

Combine like terms: 550 + -550 = 0
-550 + -500x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '550' to each side of the equation.
-550 + -500x + 550 + x2 = 0 + 550

Reorder the terms:
-550 + 550 + -500x + x2 = 0 + 550

Combine like terms: -550 + 550 = 0
0 + -500x + x2 = 0 + 550
-500x + x2 = 0 + 550

Combine like terms: 0 + 550 = 550
-500x + x2 = 550

The x term is -500x.  Take half its coefficient (-250).
Square it (62500) and add it to both sides.

Add '62500' to each side of the equation.
-500x + 62500 + x2 = 550 + 62500

Reorder the terms:
62500 + -500x + x2 = 550 + 62500

Combine like terms: 550 + 62500 = 63050
62500 + -500x + x2 = 63050

Factor a perfect square on the left side:
(x + -250)(x + -250) = 63050

Calculate the square root of the right side: 251.09759059

Break this problem into two subproblems by setting 
(x + -250) equal to 251.09759059 and -251.09759059.

Subproblem 1

x + -250 = 251.09759059 Simplifying x + -250 = 251.09759059 Reorder the terms: -250 + x = 251.09759059 Solving -250 + x = 251.09759059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '250' to each side of the equation. -250 + 250 + x = 251.09759059 + 250 Combine like terms: -250 + 250 = 0 0 + x = 251.09759059 + 250 x = 251.09759059 + 250 Combine like terms: 251.09759059 + 250 = 501.09759059 x = 501.09759059 Simplifying x = 501.09759059

Subproblem 2

x + -250 = -251.09759059 Simplifying x + -250 = -251.09759059 Reorder the terms: -250 + x = -251.09759059 Solving -250 + x = -251.09759059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '250' to each side of the equation. -250 + 250 + x = -251.09759059 + 250 Combine like terms: -250 + 250 = 0 0 + x = -251.09759059 + 250 x = -251.09759059 + 250 Combine like terms: -251.09759059 + 250 = -1.09759059 x = -1.09759059 Simplifying x = -1.09759059

Solution

The solution to the problem is based on the solutions from the subproblems. x = {501.09759059, -1.09759059}

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