7g^2-3g-3=0

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Solution for 7g^2-3g-3=0 equation:


Simplifying
7g2 + -3g + -3 = 0

Reorder the terms:
-3 + -3g + 7g2 = 0

Solving
-3 + -3g + 7g2 = 0

Solving for variable 'g'.

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

Divide each side by '7'.
-0.4285714286 + -0.4285714286g + g2 = 0

Move the constant term to the right:

Add '0.4285714286' to each side of the equation.
-0.4285714286 + -0.4285714286g + 0.4285714286 + g2 = 0 + 0.4285714286

Reorder the terms:
-0.4285714286 + 0.4285714286 + -0.4285714286g + g2 = 0 + 0.4285714286

Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000
0.0000000000 + -0.4285714286g + g2 = 0 + 0.4285714286
-0.4285714286g + g2 = 0 + 0.4285714286

Combine like terms: 0 + 0.4285714286 = 0.4285714286
-0.4285714286g + g2 = 0.4285714286

The g term is -0.4285714286g.  Take half its coefficient (-0.2142857143).
Square it (0.04591836735) and add it to both sides.

Add '0.04591836735' to each side of the equation.
-0.4285714286g + 0.04591836735 + g2 = 0.4285714286 + 0.04591836735

Reorder the terms:
0.04591836735 + -0.4285714286g + g2 = 0.4285714286 + 0.04591836735

Combine like terms: 0.4285714286 + 0.04591836735 = 0.47448979595
0.04591836735 + -0.4285714286g + g2 = 0.47448979595

Factor a perfect square on the left side:
(g + -0.2142857143)(g + -0.2142857143) = 0.47448979595

Calculate the square root of the right side: 0.688832197

Break this problem into two subproblems by setting 
(g + -0.2142857143) equal to 0.688832197 and -0.688832197.

Subproblem 1

g + -0.2142857143 = 0.688832197 Simplifying g + -0.2142857143 = 0.688832197 Reorder the terms: -0.2142857143 + g = 0.688832197 Solving -0.2142857143 + g = 0.688832197 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.2142857143' to each side of the equation. -0.2142857143 + 0.2142857143 + g = 0.688832197 + 0.2142857143 Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000 0.0000000000 + g = 0.688832197 + 0.2142857143 g = 0.688832197 + 0.2142857143 Combine like terms: 0.688832197 + 0.2142857143 = 0.9031179113 g = 0.9031179113 Simplifying g = 0.9031179113

Subproblem 2

g + -0.2142857143 = -0.688832197 Simplifying g + -0.2142857143 = -0.688832197 Reorder the terms: -0.2142857143 + g = -0.688832197 Solving -0.2142857143 + g = -0.688832197 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.2142857143' to each side of the equation. -0.2142857143 + 0.2142857143 + g = -0.688832197 + 0.2142857143 Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000 0.0000000000 + g = -0.688832197 + 0.2142857143 g = -0.688832197 + 0.2142857143 Combine like terms: -0.688832197 + 0.2142857143 = -0.4745464827 g = -0.4745464827 Simplifying g = -0.4745464827

Solution

The solution to the problem is based on the solutions from the subproblems. g = {0.9031179113, -0.4745464827}

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