124x-0.1x^2=2850

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Solution for 124x-0.1x^2=2850 equation:


Simplifying
124x + -0.1x2 = 2850

Solving
124x + -0.1x2 = 2850

Solving for variable 'x'.

Reorder the terms:
-2850 + 124x + -0.1x2 = 2850 + -2850

Combine like terms: 2850 + -2850 = 0
-2850 + 124x + -0.1x2 = 0

Begin completing the square.  Divide all terms by
-0.1 the coefficient of the squared term: 

Divide each side by '-0.1'.
28500 + -1240x + x2 = 0

Move the constant term to the right:

Add '-28500' to each side of the equation.
28500 + -1240x + -28500 + x2 = 0 + -28500

Reorder the terms:
28500 + -28500 + -1240x + x2 = 0 + -28500

Combine like terms: 28500 + -28500 = 0
0 + -1240x + x2 = 0 + -28500
-1240x + x2 = 0 + -28500

Combine like terms: 0 + -28500 = -28500
-1240x + x2 = -28500

The x term is -1240x.  Take half its coefficient (-620).
Square it (384400) and add it to both sides.

Add '384400' to each side of the equation.
-1240x + 384400 + x2 = -28500 + 384400

Reorder the terms:
384400 + -1240x + x2 = -28500 + 384400

Combine like terms: -28500 + 384400 = 355900
384400 + -1240x + x2 = 355900

Factor a perfect square on the left side:
(x + -620)(x + -620) = 355900

Calculate the square root of the right side: 596.573549531

Break this problem into two subproblems by setting 
(x + -620) equal to 596.573549531 and -596.573549531.

Subproblem 1

x + -620 = 596.573549531 Simplifying x + -620 = 596.573549531 Reorder the terms: -620 + x = 596.573549531 Solving -620 + x = 596.573549531 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '620' to each side of the equation. -620 + 620 + x = 596.573549531 + 620 Combine like terms: -620 + 620 = 0 0 + x = 596.573549531 + 620 x = 596.573549531 + 620 Combine like terms: 596.573549531 + 620 = 1216.573549531 x = 1216.573549531 Simplifying x = 1216.573549531

Subproblem 2

x + -620 = -596.573549531 Simplifying x + -620 = -596.573549531 Reorder the terms: -620 + x = -596.573549531 Solving -620 + x = -596.573549531 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '620' to each side of the equation. -620 + 620 + x = -596.573549531 + 620 Combine like terms: -620 + 620 = 0 0 + x = -596.573549531 + 620 x = -596.573549531 + 620 Combine like terms: -596.573549531 + 620 = 23.426450469 x = 23.426450469 Simplifying x = 23.426450469

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1216.573549531, 23.426450469}

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