3x^2+14x+13=0

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Solution for 3x^2+14x+13=0 equation: 


Simplifying
3x2 + 14x + 13 = 0

Reorder the terms:
13 + 14x + 3x2 = 0

Solving
13 + 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'.
4.333333333 + 4.666666667x + x2 = 0

Move the constant term to the right:

Add '-4.333333333' to each side of the equation.
4.333333333 + 4.666666667x + -4.333333333 + x2 = 0 + -4.333333333

Reorder the terms:
4.333333333 + -4.333333333 + 4.666666667x + x2 = 0 + -4.333333333

Combine like terms: 4.333333333 + -4.333333333 = 0.000000000
0.000000000 + 4.666666667x + x2 = 0 + -4.333333333
4.666666667x + x2 = 0 + -4.333333333

Combine like terms: 0 + -4.333333333 = -4.333333333
4.666666667x + x2 = -4.333333333

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 = -4.333333333 + 5.444444448

Reorder the terms:
5.444444448 + 4.666666667x + x2 = -4.333333333 + 5.444444448

Combine like terms: -4.333333333 + 5.444444448 = 1.111111115
5.444444448 + 4.666666667x + x2 = 1.111111115

Factor a perfect square on the left side:
(x + 2.333333334)(x + 2.333333334) = 1.111111115

Calculate the square root of the right side: 1.054092555

Break this problem into two subproblems by setting 
(x + 2.333333334) equal to 1.054092555 and -1.054092555.


Subproblem 1
x + 2.333333334 = 1.054092555

Simplifying
x + 2.333333334 = 1.054092555

Reorder the terms:
2.333333334 + x = 1.054092555

Solving
2.333333334 + x = 1.054092555

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 = 1.054092555 + -2.333333334

Combine like terms: 2.333333334 + -2.333333334 = 0.000000000
0.000000000 + x = 1.054092555 + -2.333333334
x = 1.054092555 + -2.333333334

Combine like terms: 1.054092555 + -2.333333334 = -1.279240779
x = -1.279240779

Simplifying
x = -1.279240779


Subproblem 2
x + 2.333333334 = -1.054092555

Simplifying
x + 2.333333334 = -1.054092555

Reorder the terms:
2.333333334 + x = -1.054092555

Solving
2.333333334 + x = -1.054092555

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 = -1.054092555 + -2.333333334

Combine like terms: 2.333333334 + -2.333333334 = 0.000000000
0.000000000 + x = -1.054092555 + -2.333333334
x = -1.054092555 + -2.333333334

Combine like terms: -1.054092555 + -2.333333334 = -3.387425889
x = -3.387425889

Simplifying
x = -3.387425889


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {-1.279240779, -3.387425889}

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