0=12x^2+12x-23

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


Simplifying
0 = 12x2 + 12x + -23

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

Solving
0 = -23 + 12x + 12x2

Solving for variable 'x'.

Combine like terms: 0 + 23 = 23
23 + -12x + -12x2 = -23 + 12x + 12x2 + 23 + -12x + -12x2

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

Combine like terms: -23 + 23 = 0
23 + -12x + -12x2 = 0 + 12x + -12x + 12x2 + -12x2
23 + -12x + -12x2 = 12x + -12x + 12x2 + -12x2

Combine like terms: 12x + -12x = 0
23 + -12x + -12x2 = 0 + 12x2 + -12x2
23 + -12x + -12x2 = 12x2 + -12x2

Combine like terms: 12x2 + -12x2 = 0
23 + -12x + -12x2 = 0

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

Divide each side by '-12'.
-1.916666667 + x + x2 = 0

Move the constant term to the right:

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

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

Combine like terms: -1.916666667 + 1.916666667 = 0.000000000
0.000000000 + x + x2 = 0 + 1.916666667
x + x2 = 0 + 1.916666667

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 1.916666667 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 1.916666667 + 0.25

Combine like terms: 1.916666667 + 0.25 = 2.166666667
1.25 + x2 = 2.166666667

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 2.166666667

Calculate the square root of the right side: 1.471960145

Break this problem into two subproblems by setting 
(x + 0.5) equal to 1.471960145 and -1.471960145.

Subproblem 1

x + 0.5 = 1.471960145 Simplifying x + 0.5 = 1.471960145 Reorder the terms: 0.5 + x = 1.471960145 Solving 0.5 + x = 1.471960145 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.471960145 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.471960145 + -0.5 x = 1.471960145 + -0.5 Combine like terms: 1.471960145 + -0.5 = 0.971960145 x = 0.971960145 Simplifying x = 0.971960145

Subproblem 2

x + 0.5 = -1.471960145 Simplifying x + 0.5 = -1.471960145 Reorder the terms: 0.5 + x = -1.471960145 Solving 0.5 + x = -1.471960145 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.471960145 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.471960145 + -0.5 x = -1.471960145 + -0.5 Combine like terms: -1.471960145 + -0.5 = -1.971960145 x = -1.971960145 Simplifying x = -1.971960145

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.971960145, -1.971960145}

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