12g^2-36g-2=-13

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Solution for 12g^2-36g-2=-13 equation:


Simplifying
12g2 + -36g + -2 = -13

Reorder the terms:
-2 + -36g + 12g2 = -13

Solving
-2 + -36g + 12g2 = -13

Solving for variable 'g'.

Reorder the terms:
-2 + 13 + -36g + 12g2 = -13 + 13

Combine like terms: -2 + 13 = 11
11 + -36g + 12g2 = -13 + 13

Combine like terms: -13 + 13 = 0
11 + -36g + 12g2 = 0

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

Divide each side by '12'.
0.9166666667 + -3g + g2 = 0

Move the constant term to the right:

Add '-0.9166666667' to each side of the equation.
0.9166666667 + -3g + -0.9166666667 + g2 = 0 + -0.9166666667

Reorder the terms:
0.9166666667 + -0.9166666667 + -3g + g2 = 0 + -0.9166666667

Combine like terms: 0.9166666667 + -0.9166666667 = 0.0000000000
0.0000000000 + -3g + g2 = 0 + -0.9166666667
-3g + g2 = 0 + -0.9166666667

Combine like terms: 0 + -0.9166666667 = -0.9166666667
-3g + g2 = -0.9166666667

The g term is -3g.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3g + 2.25 + g2 = -0.9166666667 + 2.25

Reorder the terms:
2.25 + -3g + g2 = -0.9166666667 + 2.25

Combine like terms: -0.9166666667 + 2.25 = 1.3333333333
2.25 + -3g + g2 = 1.3333333333

Factor a perfect square on the left side:
(g + -1.5)(g + -1.5) = 1.3333333333

Calculate the square root of the right side: 1.154700538

Break this problem into two subproblems by setting 
(g + -1.5) equal to 1.154700538 and -1.154700538.

Subproblem 1

g + -1.5 = 1.154700538 Simplifying g + -1.5 = 1.154700538 Reorder the terms: -1.5 + g = 1.154700538 Solving -1.5 + g = 1.154700538 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + g = 1.154700538 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + g = 1.154700538 + 1.5 g = 1.154700538 + 1.5 Combine like terms: 1.154700538 + 1.5 = 2.654700538 g = 2.654700538 Simplifying g = 2.654700538

Subproblem 2

g + -1.5 = -1.154700538 Simplifying g + -1.5 = -1.154700538 Reorder the terms: -1.5 + g = -1.154700538 Solving -1.5 + g = -1.154700538 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + g = -1.154700538 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + g = -1.154700538 + 1.5 g = -1.154700538 + 1.5 Combine like terms: -1.154700538 + 1.5 = 0.345299462 g = 0.345299462 Simplifying g = 0.345299462

Solution

The solution to the problem is based on the solutions from the subproblems. g = {2.654700538, 0.345299462}

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