250x-x^2=7200

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Solution for 250x-x^2=7200 equation:


Simplifying
250x + -1x2 = 7200

Solving
250x + -1x2 = 7200

Solving for variable 'x'.

Reorder the terms:
-7200 + 250x + -1x2 = 7200 + -7200

Combine like terms: 7200 + -7200 = 0
-7200 + 250x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
7200 + -250x + x2 = 0

Move the constant term to the right:

Add '-7200' to each side of the equation.
7200 + -250x + -7200 + x2 = 0 + -7200

Reorder the terms:
7200 + -7200 + -250x + x2 = 0 + -7200

Combine like terms: 7200 + -7200 = 0
0 + -250x + x2 = 0 + -7200
-250x + x2 = 0 + -7200

Combine like terms: 0 + -7200 = -7200
-250x + x2 = -7200

The x term is -250x.  Take half its coefficient (-125).
Square it (15625) and add it to both sides.

Add '15625' to each side of the equation.
-250x + 15625 + x2 = -7200 + 15625

Reorder the terms:
15625 + -250x + x2 = -7200 + 15625

Combine like terms: -7200 + 15625 = 8425
15625 + -250x + x2 = 8425

Factor a perfect square on the left side:
(x + -125)(x + -125) = 8425

Calculate the square root of the right side: 91.787798753

Break this problem into two subproblems by setting 
(x + -125) equal to 91.787798753 and -91.787798753.

Subproblem 1

x + -125 = 91.787798753 Simplifying x + -125 = 91.787798753 Reorder the terms: -125 + x = 91.787798753 Solving -125 + x = 91.787798753 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '125' to each side of the equation. -125 + 125 + x = 91.787798753 + 125 Combine like terms: -125 + 125 = 0 0 + x = 91.787798753 + 125 x = 91.787798753 + 125 Combine like terms: 91.787798753 + 125 = 216.787798753 x = 216.787798753 Simplifying x = 216.787798753

Subproblem 2

x + -125 = -91.787798753 Simplifying x + -125 = -91.787798753 Reorder the terms: -125 + x = -91.787798753 Solving -125 + x = -91.787798753 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '125' to each side of the equation. -125 + 125 + x = -91.787798753 + 125 Combine like terms: -125 + 125 = 0 0 + x = -91.787798753 + 125 x = -91.787798753 + 125 Combine like terms: -91.787798753 + 125 = 33.212201247 x = 33.212201247 Simplifying x = 33.212201247

Solution

The solution to the problem is based on the solutions from the subproblems. x = {216.787798753, 33.212201247}

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