4x^2-58x+135=0

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Solution for 4x^2-58x+135=0 equation:


Simplifying
4x2 + -58x + 135 = 0

Reorder the terms:
135 + -58x + 4x2 = 0

Solving
135 + -58x + 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'.
33.75 + -14.5x + x2 = 0

Move the constant term to the right:

Add '-33.75' to each side of the equation.
33.75 + -14.5x + -33.75 + x2 = 0 + -33.75

Reorder the terms:
33.75 + -33.75 + -14.5x + x2 = 0 + -33.75

Combine like terms: 33.75 + -33.75 = 0.00
0.00 + -14.5x + x2 = 0 + -33.75
-14.5x + x2 = 0 + -33.75

Combine like terms: 0 + -33.75 = -33.75
-14.5x + x2 = -33.75

The x term is -14.5x.  Take half its coefficient (-7.25).
Square it (52.5625) and add it to both sides.

Add '52.5625' to each side of the equation.
-14.5x + 52.5625 + x2 = -33.75 + 52.5625

Reorder the terms:
52.5625 + -14.5x + x2 = -33.75 + 52.5625

Combine like terms: -33.75 + 52.5625 = 18.8125
52.5625 + -14.5x + x2 = 18.8125

Factor a perfect square on the left side:
(x + -7.25)(x + -7.25) = 18.8125

Calculate the square root of the right side: 4.337337893

Break this problem into two subproblems by setting 
(x + -7.25) equal to 4.337337893 and -4.337337893.

Subproblem 1

x + -7.25 = 4.337337893 Simplifying x + -7.25 = 4.337337893 Reorder the terms: -7.25 + x = 4.337337893 Solving -7.25 + x = 4.337337893 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.25' to each side of the equation. -7.25 + 7.25 + x = 4.337337893 + 7.25 Combine like terms: -7.25 + 7.25 = 0.00 0.00 + x = 4.337337893 + 7.25 x = 4.337337893 + 7.25 Combine like terms: 4.337337893 + 7.25 = 11.587337893 x = 11.587337893 Simplifying x = 11.587337893

Subproblem 2

x + -7.25 = -4.337337893 Simplifying x + -7.25 = -4.337337893 Reorder the terms: -7.25 + x = -4.337337893 Solving -7.25 + x = -4.337337893 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.25' to each side of the equation. -7.25 + 7.25 + x = -4.337337893 + 7.25 Combine like terms: -7.25 + 7.25 = 0.00 0.00 + x = -4.337337893 + 7.25 x = -4.337337893 + 7.25 Combine like terms: -4.337337893 + 7.25 = 2.912662107 x = 2.912662107 Simplifying x = 2.912662107

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.587337893, 2.912662107}

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