12x^2-23x-5=0

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Solution for 12x^2-23x-5=0 equation:


Simplifying
12x2 + -23x + -5 = 0

Reorder the terms:
-5 + -23x + 12x2 = 0

Solving
-5 + -23x + 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'.
-0.4166666667 + -1.916666667x + x2 = 0

Move the constant term to the right:

Add '0.4166666667' to each side of the equation.
-0.4166666667 + -1.916666667x + 0.4166666667 + x2 = 0 + 0.4166666667

Reorder the terms:
-0.4166666667 + 0.4166666667 + -1.916666667x + x2 = 0 + 0.4166666667

Combine like terms: -0.4166666667 + 0.4166666667 = 0.0000000000
0.0000000000 + -1.916666667x + x2 = 0 + 0.4166666667
-1.916666667x + x2 = 0 + 0.4166666667

Combine like terms: 0 + 0.4166666667 = 0.4166666667
-1.916666667x + x2 = 0.4166666667

The x term is -1.916666667x.  Take half its coefficient (-0.9583333335).
Square it (0.9184027781) and add it to both sides.

Add '0.9184027781' to each side of the equation.
-1.916666667x + 0.9184027781 + x2 = 0.4166666667 + 0.9184027781

Reorder the terms:
0.9184027781 + -1.916666667x + x2 = 0.4166666667 + 0.9184027781

Combine like terms: 0.4166666667 + 0.9184027781 = 1.3350694448
0.9184027781 + -1.916666667x + x2 = 1.3350694448

Factor a perfect square on the left side:
(x + -0.9583333335)(x + -0.9583333335) = 1.3350694448

Calculate the square root of the right side: 1.155452052

Break this problem into two subproblems by setting 
(x + -0.9583333335) equal to 1.155452052 and -1.155452052.

Subproblem 1

x + -0.9583333335 = 1.155452052 Simplifying x + -0.9583333335 = 1.155452052 Reorder the terms: -0.9583333335 + x = 1.155452052 Solving -0.9583333335 + x = 1.155452052 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9583333335' to each side of the equation. -0.9583333335 + 0.9583333335 + x = 1.155452052 + 0.9583333335 Combine like terms: -0.9583333335 + 0.9583333335 = 0.0000000000 0.0000000000 + x = 1.155452052 + 0.9583333335 x = 1.155452052 + 0.9583333335 Combine like terms: 1.155452052 + 0.9583333335 = 2.1137853855 x = 2.1137853855 Simplifying x = 2.1137853855

Subproblem 2

x + -0.9583333335 = -1.155452052 Simplifying x + -0.9583333335 = -1.155452052 Reorder the terms: -0.9583333335 + x = -1.155452052 Solving -0.9583333335 + x = -1.155452052 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9583333335' to each side of the equation. -0.9583333335 + 0.9583333335 + x = -1.155452052 + 0.9583333335 Combine like terms: -0.9583333335 + 0.9583333335 = 0.0000000000 0.0000000000 + x = -1.155452052 + 0.9583333335 x = -1.155452052 + 0.9583333335 Combine like terms: -1.155452052 + 0.9583333335 = -0.1971187185 x = -0.1971187185 Simplifying x = -0.1971187185

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.1137853855, -0.1971187185}

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