6x^2-13x+4=0

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Solution for 6x^2-13x+4=0 equation:


Simplifying
6x2 + -13x + 4 = 0

Reorder the terms:
4 + -13x + 6x2 = 0

Solving
4 + -13x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
0.6666666667 + -2.166666667x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + -2.166666667x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + -2.166666667x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + -2.166666667x + x2 = 0 + -0.6666666667
-2.166666667x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
-2.166666667x + x2 = -0.6666666667

The x term is -2.166666667x.  Take half its coefficient (-1.083333334).
Square it (1.173611113) and add it to both sides.

Add '1.173611113' to each side of the equation.
-2.166666667x + 1.173611113 + x2 = -0.6666666667 + 1.173611113

Reorder the terms:
1.173611113 + -2.166666667x + x2 = -0.6666666667 + 1.173611113

Combine like terms: -0.6666666667 + 1.173611113 = 0.5069444463
1.173611113 + -2.166666667x + x2 = 0.5069444463

Factor a perfect square on the left side:
(x + -1.083333334)(x + -1.083333334) = 0.5069444463

Calculate the square root of the right side: 0.712000313

Break this problem into two subproblems by setting 
(x + -1.083333334) equal to 0.712000313 and -0.712000313.

Subproblem 1

x + -1.083333334 = 0.712000313 Simplifying x + -1.083333334 = 0.712000313 Reorder the terms: -1.083333334 + x = 0.712000313 Solving -1.083333334 + x = 0.712000313 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.083333334' to each side of the equation. -1.083333334 + 1.083333334 + x = 0.712000313 + 1.083333334 Combine like terms: -1.083333334 + 1.083333334 = 0.000000000 0.000000000 + x = 0.712000313 + 1.083333334 x = 0.712000313 + 1.083333334 Combine like terms: 0.712000313 + 1.083333334 = 1.795333647 x = 1.795333647 Simplifying x = 1.795333647

Subproblem 2

x + -1.083333334 = -0.712000313 Simplifying x + -1.083333334 = -0.712000313 Reorder the terms: -1.083333334 + x = -0.712000313 Solving -1.083333334 + x = -0.712000313 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.083333334' to each side of the equation. -1.083333334 + 1.083333334 + x = -0.712000313 + 1.083333334 Combine like terms: -1.083333334 + 1.083333334 = 0.000000000 0.000000000 + x = -0.712000313 + 1.083333334 x = -0.712000313 + 1.083333334 Combine like terms: -0.712000313 + 1.083333334 = 0.371333021 x = 0.371333021 Simplifying x = 0.371333021

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.795333647, 0.371333021}

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