12x^2-29x-14=0

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Solution for 12x^2-29x-14=0 equation:


Simplifying
12x2 + -29x + -14 = 0

Reorder the terms:
-14 + -29x + 12x2 = 0

Solving
-14 + -29x + 12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
-1.166666667 + -2.416666667x + x2 = 0

Move the constant term to the right:

Add '1.166666667' to each side of the equation.
-1.166666667 + -2.416666667x + 1.166666667 + x2 = 0 + 1.166666667

Reorder the terms:
-1.166666667 + 1.166666667 + -2.416666667x + x2 = 0 + 1.166666667

Combine like terms: -1.166666667 + 1.166666667 = 0.000000000
0.000000000 + -2.416666667x + x2 = 0 + 1.166666667
-2.416666667x + x2 = 0 + 1.166666667

Combine like terms: 0 + 1.166666667 = 1.166666667
-2.416666667x + x2 = 1.166666667

The x term is -2.416666667x.  Take half its coefficient (-1.208333334).
Square it (1.460069446) and add it to both sides.

Add '1.460069446' to each side of the equation.
-2.416666667x + 1.460069446 + x2 = 1.166666667 + 1.460069446

Reorder the terms:
1.460069446 + -2.416666667x + x2 = 1.166666667 + 1.460069446

Combine like terms: 1.166666667 + 1.460069446 = 2.626736113
1.460069446 + -2.416666667x + x2 = 2.626736113

Factor a perfect square on the left side:
(x + -1.208333334)(x + -1.208333334) = 2.626736113

Calculate the square root of the right side: 1.620720862

Break this problem into two subproblems by setting 
(x + -1.208333334) equal to 1.620720862 and -1.620720862.

Subproblem 1

x + -1.208333334 = 1.620720862 Simplifying x + -1.208333334 = 1.620720862 Reorder the terms: -1.208333334 + x = 1.620720862 Solving -1.208333334 + x = 1.620720862 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.208333334' to each side of the equation. -1.208333334 + 1.208333334 + x = 1.620720862 + 1.208333334 Combine like terms: -1.208333334 + 1.208333334 = 0.000000000 0.000000000 + x = 1.620720862 + 1.208333334 x = 1.620720862 + 1.208333334 Combine like terms: 1.620720862 + 1.208333334 = 2.829054196 x = 2.829054196 Simplifying x = 2.829054196

Subproblem 2

x + -1.208333334 = -1.620720862 Simplifying x + -1.208333334 = -1.620720862 Reorder the terms: -1.208333334 + x = -1.620720862 Solving -1.208333334 + x = -1.620720862 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.208333334' to each side of the equation. -1.208333334 + 1.208333334 + x = -1.620720862 + 1.208333334 Combine like terms: -1.208333334 + 1.208333334 = 0.000000000 0.000000000 + x = -1.620720862 + 1.208333334 x = -1.620720862 + 1.208333334 Combine like terms: -1.620720862 + 1.208333334 = -0.412387528 x = -0.412387528 Simplifying x = -0.412387528

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.829054196, -0.412387528}

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