3x^2+20x+14=0

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Solution for 3x^2+20x+14=0 equation: 


Simplifying
3x2 + 20x + 14 = 0

Reorder the terms:
14 + 20x + 3x2 = 0

Solving
14 + 20x + 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 + 6.666666667x + x2 = 0

Move the constant term to the right:

Add '-4.666666667' to each side of the equation.
4.666666667 + 6.666666667x + -4.666666667 + x2 = 0 + -4.666666667

Reorder the terms:
4.666666667 + -4.666666667 + 6.666666667x + x2 = 0 + -4.666666667

Combine like terms: 4.666666667 + -4.666666667 = 0.000000000
0.000000000 + 6.666666667x + x2 = 0 + -4.666666667
6.666666667x + x2 = 0 + -4.666666667

Combine like terms: 0 + -4.666666667 = -4.666666667
6.666666667x + x2 = -4.666666667

The x term is 6.666666667x.  Take half its coefficient (3.333333334).
Square it (11.11111112) and add it to both sides.

Add '11.11111112' to each side of the equation.
6.666666667x + 11.11111112 + x2 = -4.666666667 + 11.11111112

Reorder the terms:
11.11111112 + 6.666666667x + x2 = -4.666666667 + 11.11111112

Combine like terms: -4.666666667 + 11.11111112 = 6.444444453
11.11111112 + 6.666666667x + x2 = 6.444444453

Factor a perfect square on the left side:
(x + 3.333333334)(x + 3.333333334) = 6.444444453

Calculate the square root of the right side: 2.538591037

Break this problem into two subproblems by setting 
(x + 3.333333334) equal to 2.538591037 and -2.538591037.


Subproblem 1
x + 3.333333334 = 2.538591037

Simplifying
x + 3.333333334 = 2.538591037

Reorder the terms:
3.333333334 + x = 2.538591037

Solving
3.333333334 + x = 2.538591037

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3.333333334' to each side of the equation.
3.333333334 + -3.333333334 + x = 2.538591037 + -3.333333334

Combine like terms: 3.333333334 + -3.333333334 = 0.000000000
0.000000000 + x = 2.538591037 + -3.333333334
x = 2.538591037 + -3.333333334

Combine like terms: 2.538591037 + -3.333333334 = -0.794742297
x = -0.794742297

Simplifying
x = -0.794742297


Subproblem 2
x + 3.333333334 = -2.538591037

Simplifying
x + 3.333333334 = -2.538591037

Reorder the terms:
3.333333334 + x = -2.538591037

Solving
3.333333334 + x = -2.538591037

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3.333333334' to each side of the equation.
3.333333334 + -3.333333334 + x = -2.538591037 + -3.333333334

Combine like terms: 3.333333334 + -3.333333334 = 0.000000000
0.000000000 + x = -2.538591037 + -3.333333334
x = -2.538591037 + -3.333333334

Combine like terms: -2.538591037 + -3.333333334 = -5.871924371
x = -5.871924371

Simplifying
x = -5.871924371


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {-0.794742297, -5.871924371}

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