4g-45g+7-38g(9+g-12)=-83g^2+4

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Solution for 4g-45g+7-38g(9+g-12)=-83g^2+4 equation:


Simplifying
4g + -45g + 7 + -38g(9 + g + -12) = -83g2 + 4

Reorder the terms:
4g + -45g + 7 + -38g(9 + -12 + g) = -83g2 + 4

Combine like terms: 9 + -12 = -3
4g + -45g + 7 + -38g(-3 + g) = -83g2 + 4
4g + -45g + 7 + (-3 * -38g + g * -38g) = -83g2 + 4
4g + -45g + 7 + (114g + -38g2) = -83g2 + 4

Reorder the terms:
7 + 4g + -45g + 114g + -38g2 = -83g2 + 4

Combine like terms: 4g + -45g = -41g
7 + -41g + 114g + -38g2 = -83g2 + 4

Combine like terms: -41g + 114g = 73g
7 + 73g + -38g2 = -83g2 + 4

Reorder the terms:
7 + 73g + -38g2 = 4 + -83g2

Solving
7 + 73g + -38g2 = 4 + -83g2

Solving for variable 'g'.

Reorder the terms:
7 + -4 + 73g + -38g2 + 83g2 = 4 + -83g2 + -4 + 83g2

Combine like terms: 7 + -4 = 3
3 + 73g + -38g2 + 83g2 = 4 + -83g2 + -4 + 83g2

Combine like terms: -38g2 + 83g2 = 45g2
3 + 73g + 45g2 = 4 + -83g2 + -4 + 83g2

Reorder the terms:
3 + 73g + 45g2 = 4 + -4 + -83g2 + 83g2

Combine like terms: 4 + -4 = 0
3 + 73g + 45g2 = 0 + -83g2 + 83g2
3 + 73g + 45g2 = -83g2 + 83g2

Combine like terms: -83g2 + 83g2 = 0
3 + 73g + 45g2 = 0

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

Divide each side by '45'.
0.06666666667 + 1.622222222g + g2 = 0

Move the constant term to the right:

Add '-0.06666666667' to each side of the equation.
0.06666666667 + 1.622222222g + -0.06666666667 + g2 = 0 + -0.06666666667

Reorder the terms:
0.06666666667 + -0.06666666667 + 1.622222222g + g2 = 0 + -0.06666666667

Combine like terms: 0.06666666667 + -0.06666666667 = 0.00000000000
0.00000000000 + 1.622222222g + g2 = 0 + -0.06666666667
1.622222222g + g2 = 0 + -0.06666666667

Combine like terms: 0 + -0.06666666667 = -0.06666666667
1.622222222g + g2 = -0.06666666667

The g term is 1.622222222g.  Take half its coefficient (0.811111111).
Square it (0.6579012344) and add it to both sides.

Add '0.6579012344' to each side of the equation.
1.622222222g + 0.6579012344 + g2 = -0.06666666667 + 0.6579012344

Reorder the terms:
0.6579012344 + 1.622222222g + g2 = -0.06666666667 + 0.6579012344

Combine like terms: -0.06666666667 + 0.6579012344 = 0.59123456773
0.6579012344 + 1.622222222g + g2 = 0.59123456773

Factor a perfect square on the left side:
(g + 0.811111111)(g + 0.811111111) = 0.59123456773

Calculate the square root of the right side: 0.76891779

Break this problem into two subproblems by setting 
(g + 0.811111111) equal to 0.76891779 and -0.76891779.

Subproblem 1

g + 0.811111111 = 0.76891779 Simplifying g + 0.811111111 = 0.76891779 Reorder the terms: 0.811111111 + g = 0.76891779 Solving 0.811111111 + g = 0.76891779 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-0.811111111' to each side of the equation. 0.811111111 + -0.811111111 + g = 0.76891779 + -0.811111111 Combine like terms: 0.811111111 + -0.811111111 = 0.000000000 0.000000000 + g = 0.76891779 + -0.811111111 g = 0.76891779 + -0.811111111 Combine like terms: 0.76891779 + -0.811111111 = -0.042193321 g = -0.042193321 Simplifying g = -0.042193321

Subproblem 2

g + 0.811111111 = -0.76891779 Simplifying g + 0.811111111 = -0.76891779 Reorder the terms: 0.811111111 + g = -0.76891779 Solving 0.811111111 + g = -0.76891779 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-0.811111111' to each side of the equation. 0.811111111 + -0.811111111 + g = -0.76891779 + -0.811111111 Combine like terms: 0.811111111 + -0.811111111 = 0.000000000 0.000000000 + g = -0.76891779 + -0.811111111 g = -0.76891779 + -0.811111111 Combine like terms: -0.76891779 + -0.811111111 = -1.580028901 g = -1.580028901 Simplifying g = -1.580028901

Solution

The solution to the problem is based on the solutions from the subproblems. g = {-0.042193321, -1.580028901}

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