(-2g^2+g+10)-(5g^2-8g-3)=

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Solution for (-2g^2+g+10)-(5g^2-8g-3)= equation:


Simplifying
(-2g2 + g + 10) + -1(5g2 + -8g + -3) = 0

Reorder the terms:
(10 + g + -2g2) + -1(5g2 + -8g + -3) = 0

Remove parenthesis around (10 + g + -2g2)
10 + g + -2g2 + -1(5g2 + -8g + -3) = 0

Reorder the terms:
10 + g + -2g2 + -1(-3 + -8g + 5g2) = 0
10 + g + -2g2 + (-3 * -1 + -8g * -1 + 5g2 * -1) = 0
10 + g + -2g2 + (3 + 8g + -5g2) = 0

Reorder the terms:
10 + 3 + g + 8g + -2g2 + -5g2 = 0

Combine like terms: 10 + 3 = 13
13 + g + 8g + -2g2 + -5g2 = 0

Combine like terms: g + 8g = 9g
13 + 9g + -2g2 + -5g2 = 0

Combine like terms: -2g2 + -5g2 = -7g2
13 + 9g + -7g2 = 0

Solving
13 + 9g + -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'.
-1.857142857 + -1.285714286g + g2 = 0

Move the constant term to the right:

Add '1.857142857' to each side of the equation.
-1.857142857 + -1.285714286g + 1.857142857 + g2 = 0 + 1.857142857

Reorder the terms:
-1.857142857 + 1.857142857 + -1.285714286g + g2 = 0 + 1.857142857

Combine like terms: -1.857142857 + 1.857142857 = 0.000000000
0.000000000 + -1.285714286g + g2 = 0 + 1.857142857
-1.285714286g + g2 = 0 + 1.857142857

Combine like terms: 0 + 1.857142857 = 1.857142857
-1.285714286g + g2 = 1.857142857

The g term is -1.285714286g.  Take half its coefficient (-0.642857143).
Square it (0.4132653063) and add it to both sides.

Add '0.4132653063' to each side of the equation.
-1.285714286g + 0.4132653063 + g2 = 1.857142857 + 0.4132653063

Reorder the terms:
0.4132653063 + -1.285714286g + g2 = 1.857142857 + 0.4132653063

Combine like terms: 1.857142857 + 0.4132653063 = 2.2704081633
0.4132653063 + -1.285714286g + g2 = 2.2704081633

Factor a perfect square on the left side:
(g + -0.642857143)(g + -0.642857143) = 2.2704081633

Calculate the square root of the right side: 1.506787365

Break this problem into two subproblems by setting 
(g + -0.642857143) equal to 1.506787365 and -1.506787365.

Subproblem 1

g + -0.642857143 = 1.506787365 Simplifying g + -0.642857143 = 1.506787365 Reorder the terms: -0.642857143 + g = 1.506787365 Solving -0.642857143 + g = 1.506787365 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.642857143' to each side of the equation. -0.642857143 + 0.642857143 + g = 1.506787365 + 0.642857143 Combine like terms: -0.642857143 + 0.642857143 = 0.000000000 0.000000000 + g = 1.506787365 + 0.642857143 g = 1.506787365 + 0.642857143 Combine like terms: 1.506787365 + 0.642857143 = 2.149644508 g = 2.149644508 Simplifying g = 2.149644508

Subproblem 2

g + -0.642857143 = -1.506787365 Simplifying g + -0.642857143 = -1.506787365 Reorder the terms: -0.642857143 + g = -1.506787365 Solving -0.642857143 + g = -1.506787365 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.642857143' to each side of the equation. -0.642857143 + 0.642857143 + g = -1.506787365 + 0.642857143 Combine like terms: -0.642857143 + 0.642857143 = 0.000000000 0.000000000 + g = -1.506787365 + 0.642857143 g = -1.506787365 + 0.642857143 Combine like terms: -1.506787365 + 0.642857143 = -0.863930222 g = -0.863930222 Simplifying g = -0.863930222

Solution

The solution to the problem is based on the solutions from the subproblems. g = {2.149644508, -0.863930222}

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