6x^2-23x-12=0

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Solution for 6x^2-23x-12=0 equation:


Simplifying
6x2 + -23x + -12 = 0

Reorder the terms:
-12 + -23x + 6x2 = 0

Solving
-12 + -23x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-2 + -3.833333333x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -3.833333333x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -3.833333333x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -3.833333333x + x2 = 0 + 2
-3.833333333x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-3.833333333x + x2 = 2

The x term is -3.833333333x.  Take half its coefficient (-1.916666667).
Square it (3.673611112) and add it to both sides.

Add '3.673611112' to each side of the equation.
-3.833333333x + 3.673611112 + x2 = 2 + 3.673611112

Reorder the terms:
3.673611112 + -3.833333333x + x2 = 2 + 3.673611112

Combine like terms: 2 + 3.673611112 = 5.673611112
3.673611112 + -3.833333333x + x2 = 5.673611112

Factor a perfect square on the left side:
(x + -1.916666667)(x + -1.916666667) = 5.673611112

Calculate the square root of the right side: 2.381934322

Break this problem into two subproblems by setting 
(x + -1.916666667) equal to 2.381934322 and -2.381934322.

Subproblem 1

x + -1.916666667 = 2.381934322 Simplifying x + -1.916666667 = 2.381934322 Reorder the terms: -1.916666667 + x = 2.381934322 Solving -1.916666667 + x = 2.381934322 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.916666667' to each side of the equation. -1.916666667 + 1.916666667 + x = 2.381934322 + 1.916666667 Combine like terms: -1.916666667 + 1.916666667 = 0.000000000 0.000000000 + x = 2.381934322 + 1.916666667 x = 2.381934322 + 1.916666667 Combine like terms: 2.381934322 + 1.916666667 = 4.298600989 x = 4.298600989 Simplifying x = 4.298600989

Subproblem 2

x + -1.916666667 = -2.381934322 Simplifying x + -1.916666667 = -2.381934322 Reorder the terms: -1.916666667 + x = -2.381934322 Solving -1.916666667 + x = -2.381934322 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.916666667' to each side of the equation. -1.916666667 + 1.916666667 + x = -2.381934322 + 1.916666667 Combine like terms: -1.916666667 + 1.916666667 = 0.000000000 0.000000000 + x = -2.381934322 + 1.916666667 x = -2.381934322 + 1.916666667 Combine like terms: -2.381934322 + 1.916666667 = -0.465267655 x = -0.465267655 Simplifying x = -0.465267655

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.298600989, -0.465267655}

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