4+6x^2-19x=

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Solution for 4+6x^2-19x= equation:


Simplifying
4 + 6x2 + -19x = 0

Reorder the terms:
4 + -19x + 6x2 = 0

Solving
4 + -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'.
0.6666666667 + -3.166666667x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + -3.166666667x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + -3.166666667x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + -3.166666667x + x2 = 0 + -0.6666666667
-3.166666667x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
-3.166666667x + x2 = -0.6666666667

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 = -0.6666666667 + 2.506944447

Reorder the terms:
2.506944447 + -3.166666667x + x2 = -0.6666666667 + 2.506944447

Combine like terms: -0.6666666667 + 2.506944447 = 1.8402777803
2.506944447 + -3.166666667x + x2 = 1.8402777803

Factor a perfect square on the left side:
(x + -1.583333334)(x + -1.583333334) = 1.8402777803

Calculate the square root of the right side: 1.356568384

Break this problem into two subproblems by setting 
(x + -1.583333334) equal to 1.356568384 and -1.356568384.

Subproblem 1

x + -1.583333334 = 1.356568384 Simplifying x + -1.583333334 = 1.356568384 Reorder the terms: -1.583333334 + x = 1.356568384 Solving -1.583333334 + x = 1.356568384 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 = 1.356568384 + 1.583333334 Combine like terms: -1.583333334 + 1.583333334 = 0.000000000 0.000000000 + x = 1.356568384 + 1.583333334 x = 1.356568384 + 1.583333334 Combine like terms: 1.356568384 + 1.583333334 = 2.939901718 x = 2.939901718 Simplifying x = 2.939901718

Subproblem 2

x + -1.583333334 = -1.356568384 Simplifying x + -1.583333334 = -1.356568384 Reorder the terms: -1.583333334 + x = -1.356568384 Solving -1.583333334 + x = -1.356568384 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 = -1.356568384 + 1.583333334 Combine like terms: -1.583333334 + 1.583333334 = 0.000000000 0.000000000 + x = -1.356568384 + 1.583333334 x = -1.356568384 + 1.583333334 Combine like terms: -1.356568384 + 1.583333334 = 0.22676495 x = 0.22676495 Simplifying x = 0.22676495

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.939901718, 0.22676495}

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