13x^2-14x+2=0

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Solution for 13x^2-14x+2=0 equation:


Simplifying
13x2 + -14x + 2 = 0

Reorder the terms:
2 + -14x + 13x2 = 0

Solving
2 + -14x + 13x2 = 0

Solving for variable 'x'.

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

Divide each side by '13'.
0.1538461538 + -1.076923077x + x2 = 0

Move the constant term to the right:

Add '-0.1538461538' to each side of the equation.
0.1538461538 + -1.076923077x + -0.1538461538 + x2 = 0 + -0.1538461538

Reorder the terms:
0.1538461538 + -0.1538461538 + -1.076923077x + x2 = 0 + -0.1538461538

Combine like terms: 0.1538461538 + -0.1538461538 = 0.0000000000
0.0000000000 + -1.076923077x + x2 = 0 + -0.1538461538
-1.076923077x + x2 = 0 + -0.1538461538

Combine like terms: 0 + -0.1538461538 = -0.1538461538
-1.076923077x + x2 = -0.1538461538

The x term is -1.076923077x.  Take half its coefficient (-0.5384615385).
Square it (0.2899408284) and add it to both sides.

Add '0.2899408284' to each side of the equation.
-1.076923077x + 0.2899408284 + x2 = -0.1538461538 + 0.2899408284

Reorder the terms:
0.2899408284 + -1.076923077x + x2 = -0.1538461538 + 0.2899408284

Combine like terms: -0.1538461538 + 0.2899408284 = 0.1360946746
0.2899408284 + -1.076923077x + x2 = 0.1360946746

Factor a perfect square on the left side:
(x + -0.5384615385)(x + -0.5384615385) = 0.1360946746

Calculate the square root of the right side: 0.368910117

Break this problem into two subproblems by setting 
(x + -0.5384615385) equal to 0.368910117 and -0.368910117.

Subproblem 1

x + -0.5384615385 = 0.368910117 Simplifying x + -0.5384615385 = 0.368910117 Reorder the terms: -0.5384615385 + x = 0.368910117 Solving -0.5384615385 + x = 0.368910117 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5384615385' to each side of the equation. -0.5384615385 + 0.5384615385 + x = 0.368910117 + 0.5384615385 Combine like terms: -0.5384615385 + 0.5384615385 = 0.0000000000 0.0000000000 + x = 0.368910117 + 0.5384615385 x = 0.368910117 + 0.5384615385 Combine like terms: 0.368910117 + 0.5384615385 = 0.9073716555 x = 0.9073716555 Simplifying x = 0.9073716555

Subproblem 2

x + -0.5384615385 = -0.368910117 Simplifying x + -0.5384615385 = -0.368910117 Reorder the terms: -0.5384615385 + x = -0.368910117 Solving -0.5384615385 + x = -0.368910117 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5384615385' to each side of the equation. -0.5384615385 + 0.5384615385 + x = -0.368910117 + 0.5384615385 Combine like terms: -0.5384615385 + 0.5384615385 = 0.0000000000 0.0000000000 + x = -0.368910117 + 0.5384615385 x = -0.368910117 + 0.5384615385 Combine like terms: -0.368910117 + 0.5384615385 = 0.1695514215 x = 0.1695514215 Simplifying x = 0.1695514215

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.9073716555, 0.1695514215}

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