862x-x^2=171873

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Solution for 862x-x^2=171873 equation:


Simplifying
862x + -1x2 = 171873

Solving
862x + -1x2 = 171873

Solving for variable 'x'.

Reorder the terms:
-171873 + 862x + -1x2 = 171873 + -171873

Combine like terms: 171873 + -171873 = 0
-171873 + 862x + -1x2 = 0

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

Divide each side by '-1'.
171873 + -862x + x2 = 0

Move the constant term to the right:

Add '-171873' to each side of the equation.
171873 + -862x + -171873 + x2 = 0 + -171873

Reorder the terms:
171873 + -171873 + -862x + x2 = 0 + -171873

Combine like terms: 171873 + -171873 = 0
0 + -862x + x2 = 0 + -171873
-862x + x2 = 0 + -171873

Combine like terms: 0 + -171873 = -171873
-862x + x2 = -171873

The x term is -862x.  Take half its coefficient (-431).
Square it (185761) and add it to both sides.

Add '185761' to each side of the equation.
-862x + 185761 + x2 = -171873 + 185761

Reorder the terms:
185761 + -862x + x2 = -171873 + 185761

Combine like terms: -171873 + 185761 = 13888
185761 + -862x + x2 = 13888

Factor a perfect square on the left side:
(x + -431)(x + -431) = 13888

Calculate the square root of the right side: 117.847358901

Break this problem into two subproblems by setting 
(x + -431) equal to 117.847358901 and -117.847358901.

Subproblem 1

x + -431 = 117.847358901 Simplifying x + -431 = 117.847358901 Reorder the terms: -431 + x = 117.847358901 Solving -431 + x = 117.847358901 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '431' to each side of the equation. -431 + 431 + x = 117.847358901 + 431 Combine like terms: -431 + 431 = 0 0 + x = 117.847358901 + 431 x = 117.847358901 + 431 Combine like terms: 117.847358901 + 431 = 548.847358901 x = 548.847358901 Simplifying x = 548.847358901

Subproblem 2

x + -431 = -117.847358901 Simplifying x + -431 = -117.847358901 Reorder the terms: -431 + x = -117.847358901 Solving -431 + x = -117.847358901 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '431' to each side of the equation. -431 + 431 + x = -117.847358901 + 431 Combine like terms: -431 + 431 = 0 0 + x = -117.847358901 + 431 x = -117.847358901 + 431 Combine like terms: -117.847358901 + 431 = 313.152641099 x = 313.152641099 Simplifying x = 313.152641099

Solution

The solution to the problem is based on the solutions from the subproblems. x = {548.847358901, 313.152641099}

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