6x^2-19x+12=0

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Solution for 6x^2-19x+12=0 equation:


Simplifying
6x2 + -19x + 12 = 0

Reorder the terms:
12 + -19x + 6x2 = 0

Solving
12 + -19x + 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'.
2 + -3.166666667x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -3.166666667x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -3.166666667x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -3.166666667x + x2 = 0 + -2
-3.166666667x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-3.166666667x + x2 = -2

The x term is -3.166666667x.  Take half its coefficient (-1.583333334).
Square it (2.506944447) and add it to both sides.

Add '2.506944447' to each side of the equation.
-3.166666667x + 2.506944447 + x2 = -2 + 2.506944447

Reorder the terms:
2.506944447 + -3.166666667x + x2 = -2 + 2.506944447

Combine like terms: -2 + 2.506944447 = 0.506944447
2.506944447 + -3.166666667x + x2 = 0.506944447

Factor a perfect square on the left side:
(x + -1.583333334)(x + -1.583333334) = 0.506944447

Calculate the square root of the right side: 0.712000314

Break this problem into two subproblems by setting 
(x + -1.583333334) equal to 0.712000314 and -0.712000314.

Subproblem 1

x + -1.583333334 = 0.712000314 Simplifying x + -1.583333334 = 0.712000314 Reorder the terms: -1.583333334 + x = 0.712000314 Solving -1.583333334 + x = 0.712000314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.583333334' to each side of the equation. -1.583333334 + 1.583333334 + x = 0.712000314 + 1.583333334 Combine like terms: -1.583333334 + 1.583333334 = 0.000000000 0.000000000 + x = 0.712000314 + 1.583333334 x = 0.712000314 + 1.583333334 Combine like terms: 0.712000314 + 1.583333334 = 2.295333648 x = 2.295333648 Simplifying x = 2.295333648

Subproblem 2

x + -1.583333334 = -0.712000314 Simplifying x + -1.583333334 = -0.712000314 Reorder the terms: -1.583333334 + x = -0.712000314 Solving -1.583333334 + x = -0.712000314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.583333334' to each side of the equation. -1.583333334 + 1.583333334 + x = -0.712000314 + 1.583333334 Combine like terms: -1.583333334 + 1.583333334 = 0.000000000 0.000000000 + x = -0.712000314 + 1.583333334 x = -0.712000314 + 1.583333334 Combine like terms: -0.712000314 + 1.583333334 = 0.87133302 x = 0.87133302 Simplifying x = 0.87133302

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.295333648, 0.87133302}

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