12x^2-29x+8=0

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Solution for 12x^2-29x+8=0 equation:


Simplifying
12x2 + -29x + 8 = 0

Reorder the terms:
8 + -29x + 12x2 = 0

Solving
8 + -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'.
0.6666666667 + -2.416666667x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + -2.416666667x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + -2.416666667x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + -2.416666667x + x2 = 0 + -0.6666666667
-2.416666667x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
-2.416666667x + x2 = -0.6666666667

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 = -0.6666666667 + 1.460069446

Reorder the terms:
1.460069446 + -2.416666667x + x2 = -0.6666666667 + 1.460069446

Combine like terms: -0.6666666667 + 1.460069446 = 0.7934027793
1.460069446 + -2.416666667x + x2 = 0.7934027793

Factor a perfect square on the left side:
(x + -1.208333334)(x + -1.208333334) = 0.7934027793

Calculate the square root of the right side: 0.890731598

Break this problem into two subproblems by setting 
(x + -1.208333334) equal to 0.890731598 and -0.890731598.

Subproblem 1

x + -1.208333334 = 0.890731598 Simplifying x + -1.208333334 = 0.890731598 Reorder the terms: -1.208333334 + x = 0.890731598 Solving -1.208333334 + x = 0.890731598 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 = 0.890731598 + 1.208333334 Combine like terms: -1.208333334 + 1.208333334 = 0.000000000 0.000000000 + x = 0.890731598 + 1.208333334 x = 0.890731598 + 1.208333334 Combine like terms: 0.890731598 + 1.208333334 = 2.099064932 x = 2.099064932 Simplifying x = 2.099064932

Subproblem 2

x + -1.208333334 = -0.890731598 Simplifying x + -1.208333334 = -0.890731598 Reorder the terms: -1.208333334 + x = -0.890731598 Solving -1.208333334 + x = -0.890731598 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 = -0.890731598 + 1.208333334 Combine like terms: -1.208333334 + 1.208333334 = 0.000000000 0.000000000 + x = -0.890731598 + 1.208333334 x = -0.890731598 + 1.208333334 Combine like terms: -0.890731598 + 1.208333334 = 0.317601736 x = 0.317601736 Simplifying x = 0.317601736

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.099064932, 0.317601736}

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