12x^2-5x=5

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


Simplifying
12x2 + -5x = 5

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

Solving
-5x + 12x2 = 5

Solving for variable 'x'.

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

Combine like terms: 5 + -5 = 0
-5 + -5x + 12x2 = 0

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

Divide each side by '12'.
-0.4166666667 + -0.4166666667x + x2 = 0

Move the constant term to the right:

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

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

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

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

The x term is -0.4166666667x.  Take half its coefficient (-0.2083333334).
Square it (0.04340277781) and add it to both sides.

Add '0.04340277781' to each side of the equation.
-0.4166666667x + 0.04340277781 + x2 = 0.4166666667 + 0.04340277781

Reorder the terms:
0.04340277781 + -0.4166666667x + x2 = 0.4166666667 + 0.04340277781

Combine like terms: 0.4166666667 + 0.04340277781 = 0.46006944451
0.04340277781 + -0.4166666667x + x2 = 0.46006944451

Factor a perfect square on the left side:
(x + -0.2083333334)(x + -0.2083333334) = 0.46006944451

Calculate the square root of the right side: 0.678284192

Break this problem into two subproblems by setting 
(x + -0.2083333334) equal to 0.678284192 and -0.678284192.

Subproblem 1

x + -0.2083333334 = 0.678284192 Simplifying x + -0.2083333334 = 0.678284192 Reorder the terms: -0.2083333334 + x = 0.678284192 Solving -0.2083333334 + x = 0.678284192 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2083333334' to each side of the equation. -0.2083333334 + 0.2083333334 + x = 0.678284192 + 0.2083333334 Combine like terms: -0.2083333334 + 0.2083333334 = 0.0000000000 0.0000000000 + x = 0.678284192 + 0.2083333334 x = 0.678284192 + 0.2083333334 Combine like terms: 0.678284192 + 0.2083333334 = 0.8866175254 x = 0.8866175254 Simplifying x = 0.8866175254

Subproblem 2

x + -0.2083333334 = -0.678284192 Simplifying x + -0.2083333334 = -0.678284192 Reorder the terms: -0.2083333334 + x = -0.678284192 Solving -0.2083333334 + x = -0.678284192 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2083333334' to each side of the equation. -0.2083333334 + 0.2083333334 + x = -0.678284192 + 0.2083333334 Combine like terms: -0.2083333334 + 0.2083333334 = 0.0000000000 0.0000000000 + x = -0.678284192 + 0.2083333334 x = -0.678284192 + 0.2083333334 Combine like terms: -0.678284192 + 0.2083333334 = -0.4699508586 x = -0.4699508586 Simplifying x = -0.4699508586

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8866175254, -0.4699508586}

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