3x^2-14x+14=0

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Solution for 3x^2-14x+14=0 equation:


Simplifying
3x2 + -14x + 14 = 0

Reorder the terms:
14 + -14x + 3x2 = 0

Solving
14 + -14x + 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'.
4.666666667 + -4.666666667x + x2 = 0

Move the constant term to the right:

Add '-4.666666667' to each side of the equation.
4.666666667 + -4.666666667x + -4.666666667 + x2 = 0 + -4.666666667

Reorder the terms:
4.666666667 + -4.666666667 + -4.666666667x + x2 = 0 + -4.666666667

Combine like terms: 4.666666667 + -4.666666667 = 0.000000000
0.000000000 + -4.666666667x + x2 = 0 + -4.666666667
-4.666666667x + x2 = 0 + -4.666666667

Combine like terms: 0 + -4.666666667 = -4.666666667
-4.666666667x + x2 = -4.666666667

The x term is -4.666666667x.  Take half its coefficient (-2.333333334).
Square it (5.444444448) and add it to both sides.

Add '5.444444448' to each side of the equation.
-4.666666667x + 5.444444448 + x2 = -4.666666667 + 5.444444448

Reorder the terms:
5.444444448 + -4.666666667x + x2 = -4.666666667 + 5.444444448

Combine like terms: -4.666666667 + 5.444444448 = 0.777777781
5.444444448 + -4.666666667x + x2 = 0.777777781

Factor a perfect square on the left side:
(x + -2.333333334)(x + -2.333333334) = 0.777777781

Calculate the square root of the right side: 0.881917106

Break this problem into two subproblems by setting 
(x + -2.333333334) equal to 0.881917106 and -0.881917106.

Subproblem 1

x + -2.333333334 = 0.881917106 Simplifying x + -2.333333334 = 0.881917106 Reorder the terms: -2.333333334 + x = 0.881917106 Solving -2.333333334 + x = 0.881917106 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.333333334' to each side of the equation. -2.333333334 + 2.333333334 + x = 0.881917106 + 2.333333334 Combine like terms: -2.333333334 + 2.333333334 = 0.000000000 0.000000000 + x = 0.881917106 + 2.333333334 x = 0.881917106 + 2.333333334 Combine like terms: 0.881917106 + 2.333333334 = 3.21525044 x = 3.21525044 Simplifying x = 3.21525044

Subproblem 2

x + -2.333333334 = -0.881917106 Simplifying x + -2.333333334 = -0.881917106 Reorder the terms: -2.333333334 + x = -0.881917106 Solving -2.333333334 + x = -0.881917106 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.333333334' to each side of the equation. -2.333333334 + 2.333333334 + x = -0.881917106 + 2.333333334 Combine like terms: -2.333333334 + 2.333333334 = 0.000000000 0.000000000 + x = -0.881917106 + 2.333333334 x = -0.881917106 + 2.333333334 Combine like terms: -0.881917106 + 2.333333334 = 1.451416228 x = 1.451416228 Simplifying x = 1.451416228

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.21525044, 1.451416228}

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