-0.5x^2+176x-1440=12000

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Solution for -0.5x^2+176x-1440=12000 equation:


Simplifying
-0.5x2 + 176x + -1440 = 12000

Reorder the terms:
-1440 + 176x + -0.5x2 = 12000

Solving
-1440 + 176x + -0.5x2 = 12000

Solving for variable 'x'.

Reorder the terms:
-1440 + -12000 + 176x + -0.5x2 = 12000 + -12000

Combine like terms: -1440 + -12000 = -13440
-13440 + 176x + -0.5x2 = 12000 + -12000

Combine like terms: 12000 + -12000 = 0
-13440 + 176x + -0.5x2 = 0

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
26880 + -352x + x2 = 0

Move the constant term to the right:

Add '-26880' to each side of the equation.
26880 + -352x + -26880 + x2 = 0 + -26880

Reorder the terms:
26880 + -26880 + -352x + x2 = 0 + -26880

Combine like terms: 26880 + -26880 = 0
0 + -352x + x2 = 0 + -26880
-352x + x2 = 0 + -26880

Combine like terms: 0 + -26880 = -26880
-352x + x2 = -26880

The x term is -352x.  Take half its coefficient (-176).
Square it (30976) and add it to both sides.

Add '30976' to each side of the equation.
-352x + 30976 + x2 = -26880 + 30976

Reorder the terms:
30976 + -352x + x2 = -26880 + 30976

Combine like terms: -26880 + 30976 = 4096
30976 + -352x + x2 = 4096

Factor a perfect square on the left side:
(x + -176)(x + -176) = 4096

Calculate the square root of the right side: 64

Break this problem into two subproblems by setting 
(x + -176) equal to 64 and -64.

Subproblem 1

x + -176 = 64 Simplifying x + -176 = 64 Reorder the terms: -176 + x = 64 Solving -176 + x = 64 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '176' to each side of the equation. -176 + 176 + x = 64 + 176 Combine like terms: -176 + 176 = 0 0 + x = 64 + 176 x = 64 + 176 Combine like terms: 64 + 176 = 240 x = 240 Simplifying x = 240

Subproblem 2

x + -176 = -64 Simplifying x + -176 = -64 Reorder the terms: -176 + x = -64 Solving -176 + x = -64 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '176' to each side of the equation. -176 + 176 + x = -64 + 176 Combine like terms: -176 + 176 = 0 0 + x = -64 + 176 x = -64 + 176 Combine like terms: -64 + 176 = 112 x = 112 Simplifying x = 112

Solution

The solution to the problem is based on the solutions from the subproblems. x = {240, 112}

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