12u^2-13u-6=

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Solution for 12u^2-13u-6= equation:


Simplifying
12u2 + -13u + -6 = 0

Reorder the terms:
-6 + -13u + 12u2 = 0

Solving
-6 + -13u + 12u2 = 0

Solving for variable 'u'.

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

Divide each side by '12'.
-0.5 + -1.083333333u + u2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -1.083333333u + 0.5 + u2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -1.083333333u + u2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -1.083333333u + u2 = 0 + 0.5
-1.083333333u + u2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-1.083333333u + u2 = 0.5

The u term is -1.083333333u.  Take half its coefficient (-0.5416666665).
Square it (0.2934027776) and add it to both sides.

Add '0.2934027776' to each side of the equation.
-1.083333333u + 0.2934027776 + u2 = 0.5 + 0.2934027776

Reorder the terms:
0.2934027776 + -1.083333333u + u2 = 0.5 + 0.2934027776

Combine like terms: 0.5 + 0.2934027776 = 0.7934027776
0.2934027776 + -1.083333333u + u2 = 0.7934027776

Factor a perfect square on the left side:
(u + -0.5416666665)(u + -0.5416666665) = 0.7934027776

Calculate the square root of the right side: 0.890731597

Break this problem into two subproblems by setting 
(u + -0.5416666665) equal to 0.890731597 and -0.890731597.

Subproblem 1

u + -0.5416666665 = 0.890731597 Simplifying u + -0.5416666665 = 0.890731597 Reorder the terms: -0.5416666665 + u = 0.890731597 Solving -0.5416666665 + u = 0.890731597 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.5416666665' to each side of the equation. -0.5416666665 + 0.5416666665 + u = 0.890731597 + 0.5416666665 Combine like terms: -0.5416666665 + 0.5416666665 = 0.0000000000 0.0000000000 + u = 0.890731597 + 0.5416666665 u = 0.890731597 + 0.5416666665 Combine like terms: 0.890731597 + 0.5416666665 = 1.4323982635 u = 1.4323982635 Simplifying u = 1.4323982635

Subproblem 2

u + -0.5416666665 = -0.890731597 Simplifying u + -0.5416666665 = -0.890731597 Reorder the terms: -0.5416666665 + u = -0.890731597 Solving -0.5416666665 + u = -0.890731597 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.5416666665' to each side of the equation. -0.5416666665 + 0.5416666665 + u = -0.890731597 + 0.5416666665 Combine like terms: -0.5416666665 + 0.5416666665 = 0.0000000000 0.0000000000 + u = -0.890731597 + 0.5416666665 u = -0.890731597 + 0.5416666665 Combine like terms: -0.890731597 + 0.5416666665 = -0.3490649305 u = -0.3490649305 Simplifying u = -0.3490649305

Solution

The solution to the problem is based on the solutions from the subproblems. u = {1.4323982635, -0.3490649305}

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