3x^2-26x+22=0

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Solution for 3x^2-26x+22=0 equation:


Simplifying
3x2 + -26x + 22 = 0

Reorder the terms:
22 + -26x + 3x2 = 0

Solving
22 + -26x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
7.333333333 + -8.666666667x + x2 = 0

Move the constant term to the right:

Add '-7.333333333' to each side of the equation.
7.333333333 + -8.666666667x + -7.333333333 + x2 = 0 + -7.333333333

Reorder the terms:
7.333333333 + -7.333333333 + -8.666666667x + x2 = 0 + -7.333333333

Combine like terms: 7.333333333 + -7.333333333 = 0.000000000
0.000000000 + -8.666666667x + x2 = 0 + -7.333333333
-8.666666667x + x2 = 0 + -7.333333333

Combine like terms: 0 + -7.333333333 = -7.333333333
-8.666666667x + x2 = -7.333333333

The x term is -8.666666667x.  Take half its coefficient (-4.333333334).
Square it (18.77777778) and add it to both sides.

Add '18.77777778' to each side of the equation.
-8.666666667x + 18.77777778 + x2 = -7.333333333 + 18.77777778

Reorder the terms:
18.77777778 + -8.666666667x + x2 = -7.333333333 + 18.77777778

Combine like terms: -7.333333333 + 18.77777778 = 11.444444447
18.77777778 + -8.666666667x + x2 = 11.444444447

Factor a perfect square on the left side:
(x + -4.333333334)(x + -4.333333334) = 11.444444447

Calculate the square root of the right side: 3.382963855

Break this problem into two subproblems by setting 
(x + -4.333333334) equal to 3.382963855 and -3.382963855.

Subproblem 1

x + -4.333333334 = 3.382963855 Simplifying x + -4.333333334 = 3.382963855 Reorder the terms: -4.333333334 + x = 3.382963855 Solving -4.333333334 + x = 3.382963855 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.333333334' to each side of the equation. -4.333333334 + 4.333333334 + x = 3.382963855 + 4.333333334 Combine like terms: -4.333333334 + 4.333333334 = 0.000000000 0.000000000 + x = 3.382963855 + 4.333333334 x = 3.382963855 + 4.333333334 Combine like terms: 3.382963855 + 4.333333334 = 7.716297189 x = 7.716297189 Simplifying x = 7.716297189

Subproblem 2

x + -4.333333334 = -3.382963855 Simplifying x + -4.333333334 = -3.382963855 Reorder the terms: -4.333333334 + x = -3.382963855 Solving -4.333333334 + x = -3.382963855 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.333333334' to each side of the equation. -4.333333334 + 4.333333334 + x = -3.382963855 + 4.333333334 Combine like terms: -4.333333334 + 4.333333334 = 0.000000000 0.000000000 + x = -3.382963855 + 4.333333334 x = -3.382963855 + 4.333333334 Combine like terms: -3.382963855 + 4.333333334 = 0.950369479 x = 0.950369479 Simplifying x = 0.950369479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.716297189, 0.950369479}

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