g(5+2g)=32

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Solution for g(5+2g)=32 equation:


Simplifying
g(5 + 2g) = 32
(5 * g + 2g * g) = 32
(5g + 2g2) = 32

Solving
5g + 2g2 = 32

Solving for variable 'g'.

Reorder the terms:
-32 + 5g + 2g2 = 32 + -32

Combine like terms: 32 + -32 = 0
-32 + 5g + 2g2 = 0

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

Divide each side by '2'.
-16 + 2.5g + g2 = 0

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + 2.5g + 16 + g2 = 0 + 16

Reorder the terms:
-16 + 16 + 2.5g + g2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 2.5g + g2 = 0 + 16
2.5g + g2 = 0 + 16

Combine like terms: 0 + 16 = 16
2.5g + g2 = 16

The g term is 2.5g.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5g + 1.5625 + g2 = 16 + 1.5625

Reorder the terms:
1.5625 + 2.5g + g2 = 16 + 1.5625

Combine like terms: 16 + 1.5625 = 17.5625
1.5625 + 2.5g + g2 = 17.5625

Factor a perfect square on the left side:
(g + 1.25)(g + 1.25) = 17.5625

Calculate the square root of the right side: 4.190763654

Break this problem into two subproblems by setting 
(g + 1.25) equal to 4.190763654 and -4.190763654.

Subproblem 1

g + 1.25 = 4.190763654 Simplifying g + 1.25 = 4.190763654 Reorder the terms: 1.25 + g = 4.190763654 Solving 1.25 + g = 4.190763654 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + g = 4.190763654 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + g = 4.190763654 + -1.25 g = 4.190763654 + -1.25 Combine like terms: 4.190763654 + -1.25 = 2.940763654 g = 2.940763654 Simplifying g = 2.940763654

Subproblem 2

g + 1.25 = -4.190763654 Simplifying g + 1.25 = -4.190763654 Reorder the terms: 1.25 + g = -4.190763654 Solving 1.25 + g = -4.190763654 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + g = -4.190763654 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + g = -4.190763654 + -1.25 g = -4.190763654 + -1.25 Combine like terms: -4.190763654 + -1.25 = -5.440763654 g = -5.440763654 Simplifying g = -5.440763654

Solution

The solution to the problem is based on the solutions from the subproblems. g = {2.940763654, -5.440763654}

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