4x^2-44x+115=0

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Solution for 4x^2-44x+115=0 equation:


Simplifying
4x2 + -44x + 115 = 0

Reorder the terms:
115 + -44x + 4x2 = 0

Solving
115 + -44x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
28.75 + -11x + x2 = 0

Move the constant term to the right:

Add '-28.75' to each side of the equation.
28.75 + -11x + -28.75 + x2 = 0 + -28.75

Reorder the terms:
28.75 + -28.75 + -11x + x2 = 0 + -28.75

Combine like terms: 28.75 + -28.75 = 0.00
0.00 + -11x + x2 = 0 + -28.75
-11x + x2 = 0 + -28.75

Combine like terms: 0 + -28.75 = -28.75
-11x + x2 = -28.75

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = -28.75 + 30.25

Reorder the terms:
30.25 + -11x + x2 = -28.75 + 30.25

Combine like terms: -28.75 + 30.25 = 1.5
30.25 + -11x + x2 = 1.5

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 1.5

Calculate the square root of the right side: 1.224744871

Break this problem into two subproblems by setting 
(x + -5.5) equal to 1.224744871 and -1.224744871.

Subproblem 1

x + -5.5 = 1.224744871 Simplifying x + -5.5 = 1.224744871 Reorder the terms: -5.5 + x = 1.224744871 Solving -5.5 + x = 1.224744871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 1.224744871 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 1.224744871 + 5.5 x = 1.224744871 + 5.5 Combine like terms: 1.224744871 + 5.5 = 6.724744871 x = 6.724744871 Simplifying x = 6.724744871

Subproblem 2

x + -5.5 = -1.224744871 Simplifying x + -5.5 = -1.224744871 Reorder the terms: -5.5 + x = -1.224744871 Solving -5.5 + x = -1.224744871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -1.224744871 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -1.224744871 + 5.5 x = -1.224744871 + 5.5 Combine like terms: -1.224744871 + 5.5 = 4.275255129 x = 4.275255129 Simplifying x = 4.275255129

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.724744871, 4.275255129}

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