9g^2-9g-5=0

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Solution for 9g^2-9g-5=0 equation:


Simplifying
9g2 + -9g + -5 = 0

Reorder the terms:
-5 + -9g + 9g2 = 0

Solving
-5 + -9g + 9g2 = 0

Solving for variable 'g'.

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

Divide each side by '9'.
-0.5555555556 + -1g + g2 = 0

Move the constant term to the right:

Add '0.5555555556' to each side of the equation.
-0.5555555556 + -1g + 0.5555555556 + g2 = 0 + 0.5555555556

Reorder the terms:
-0.5555555556 + 0.5555555556 + -1g + g2 = 0 + 0.5555555556

Combine like terms: -0.5555555556 + 0.5555555556 = 0.0000000000
0.0000000000 + -1g + g2 = 0 + 0.5555555556
-1g + g2 = 0 + 0.5555555556

Combine like terms: 0 + 0.5555555556 = 0.5555555556
-1g + g2 = 0.5555555556

The g term is -1g.  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.
-1g + 0.25 + g2 = 0.5555555556 + 0.25

Reorder the terms:
0.25 + -1g + g2 = 0.5555555556 + 0.25

Combine like terms: 0.5555555556 + 0.25 = 0.8055555556
0.25 + -1g + g2 = 0.8055555556

Factor a perfect square on the left side:
(g + -0.5)(g + -0.5) = 0.8055555556

Calculate the square root of the right side: 0.897527468

Break this problem into two subproblems by setting 
(g + -0.5) equal to 0.897527468 and -0.897527468.

Subproblem 1

g + -0.5 = 0.897527468 Simplifying g + -0.5 = 0.897527468 Reorder the terms: -0.5 + g = 0.897527468 Solving -0.5 + g = 0.897527468 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + g = 0.897527468 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + g = 0.897527468 + 0.5 g = 0.897527468 + 0.5 Combine like terms: 0.897527468 + 0.5 = 1.397527468 g = 1.397527468 Simplifying g = 1.397527468

Subproblem 2

g + -0.5 = -0.897527468 Simplifying g + -0.5 = -0.897527468 Reorder the terms: -0.5 + g = -0.897527468 Solving -0.5 + g = -0.897527468 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + g = -0.897527468 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + g = -0.897527468 + 0.5 g = -0.897527468 + 0.5 Combine like terms: -0.897527468 + 0.5 = -0.397527468 g = -0.397527468 Simplifying g = -0.397527468

Solution

The solution to the problem is based on the solutions from the subproblems. g = {1.397527468, -0.397527468}

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