-.25x^2+110x-9600=0

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Solution for -.25x^2+110x-9600=0 equation:


Simplifying
-0.25x2 + 110x + -9600 = 0

Reorder the terms:
-9600 + 110x + -0.25x2 = 0

Solving
-9600 + 110x + -0.25x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.25 the coefficient of the squared term: 

Divide each side by '-0.25'.
38400 + -440x + x2 = 0

Move the constant term to the right:

Add '-38400' to each side of the equation.
38400 + -440x + -38400 + x2 = 0 + -38400

Reorder the terms:
38400 + -38400 + -440x + x2 = 0 + -38400

Combine like terms: 38400 + -38400 = 0
0 + -440x + x2 = 0 + -38400
-440x + x2 = 0 + -38400

Combine like terms: 0 + -38400 = -38400
-440x + x2 = -38400

The x term is -440x.  Take half its coefficient (-220).
Square it (48400) and add it to both sides.

Add '48400' to each side of the equation.
-440x + 48400 + x2 = -38400 + 48400

Reorder the terms:
48400 + -440x + x2 = -38400 + 48400

Combine like terms: -38400 + 48400 = 10000
48400 + -440x + x2 = 10000

Factor a perfect square on the left side:
(x + -220)(x + -220) = 10000

Calculate the square root of the right side: 100

Break this problem into two subproblems by setting 
(x + -220) equal to 100 and -100.

Subproblem 1

x + -220 = 100 Simplifying x + -220 = 100 Reorder the terms: -220 + x = 100 Solving -220 + x = 100 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '220' to each side of the equation. -220 + 220 + x = 100 + 220 Combine like terms: -220 + 220 = 0 0 + x = 100 + 220 x = 100 + 220 Combine like terms: 100 + 220 = 320 x = 320 Simplifying x = 320

Subproblem 2

x + -220 = -100 Simplifying x + -220 = -100 Reorder the terms: -220 + x = -100 Solving -220 + x = -100 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '220' to each side of the equation. -220 + 220 + x = -100 + 220 Combine like terms: -220 + 220 = 0 0 + x = -100 + 220 x = -100 + 220 Combine like terms: -100 + 220 = 120 x = 120 Simplifying x = 120

Solution

The solution to the problem is based on the solutions from the subproblems. x = {320, 120}

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