12x^2-11x=11

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Solution for 12x^2-11x=11 equation:


Simplifying
12x2 + -11x = 11

Reorder the terms:
-11x + 12x2 = 11

Solving
-11x + 12x2 = 11

Solving for variable 'x'.

Reorder the terms:
-11 + -11x + 12x2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + -11x + 12x2 = 0

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

Divide each side by '12'.
-0.9166666667 + -0.9166666667x + x2 = 0

Move the constant term to the right:

Add '0.9166666667' to each side of the equation.
-0.9166666667 + -0.9166666667x + 0.9166666667 + x2 = 0 + 0.9166666667

Reorder the terms:
-0.9166666667 + 0.9166666667 + -0.9166666667x + x2 = 0 + 0.9166666667

Combine like terms: -0.9166666667 + 0.9166666667 = 0.0000000000
0.0000000000 + -0.9166666667x + x2 = 0 + 0.9166666667
-0.9166666667x + x2 = 0 + 0.9166666667

Combine like terms: 0 + 0.9166666667 = 0.9166666667
-0.9166666667x + x2 = 0.9166666667

The x term is -0.9166666667x.  Take half its coefficient (-0.4583333334).
Square it (0.2100694445) and add it to both sides.

Add '0.2100694445' to each side of the equation.
-0.9166666667x + 0.2100694445 + x2 = 0.9166666667 + 0.2100694445

Reorder the terms:
0.2100694445 + -0.9166666667x + x2 = 0.9166666667 + 0.2100694445

Combine like terms: 0.9166666667 + 0.2100694445 = 1.1267361112
0.2100694445 + -0.9166666667x + x2 = 1.1267361112

Factor a perfect square on the left side:
(x + -0.4583333334)(x + -0.4583333334) = 1.1267361112

Calculate the square root of the right side: 1.061478267

Break this problem into two subproblems by setting 
(x + -0.4583333334) equal to 1.061478267 and -1.061478267.

Subproblem 1

x + -0.4583333334 = 1.061478267 Simplifying x + -0.4583333334 = 1.061478267 Reorder the terms: -0.4583333334 + x = 1.061478267 Solving -0.4583333334 + x = 1.061478267 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4583333334' to each side of the equation. -0.4583333334 + 0.4583333334 + x = 1.061478267 + 0.4583333334 Combine like terms: -0.4583333334 + 0.4583333334 = 0.0000000000 0.0000000000 + x = 1.061478267 + 0.4583333334 x = 1.061478267 + 0.4583333334 Combine like terms: 1.061478267 + 0.4583333334 = 1.5198116004 x = 1.5198116004 Simplifying x = 1.5198116004

Subproblem 2

x + -0.4583333334 = -1.061478267 Simplifying x + -0.4583333334 = -1.061478267 Reorder the terms: -0.4583333334 + x = -1.061478267 Solving -0.4583333334 + x = -1.061478267 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4583333334' to each side of the equation. -0.4583333334 + 0.4583333334 + x = -1.061478267 + 0.4583333334 Combine like terms: -0.4583333334 + 0.4583333334 = 0.0000000000 0.0000000000 + x = -1.061478267 + 0.4583333334 x = -1.061478267 + 0.4583333334 Combine like terms: -1.061478267 + 0.4583333334 = -0.6031449336 x = -0.6031449336 Simplifying x = -0.6031449336

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.5198116004, -0.6031449336}

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