g^2-10g+8=0

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Solution for g^2-10g+8=0 equation:


Simplifying
g2 + -10g + 8 = 0

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

Solving
8 + -10g + g2 = 0

Solving for variable 'g'.

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -10g + -8 + g2 = 0 + -8

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

Combine like terms: 8 + -8 = 0
0 + -10g + g2 = 0 + -8
-10g + g2 = 0 + -8

Combine like terms: 0 + -8 = -8
-10g + g2 = -8

The g term is -10g.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10g + 25 + g2 = -8 + 25

Reorder the terms:
25 + -10g + g2 = -8 + 25

Combine like terms: -8 + 25 = 17
25 + -10g + g2 = 17

Factor a perfect square on the left side:
(g + -5)(g + -5) = 17

Calculate the square root of the right side: 4.123105626

Break this problem into two subproblems by setting 
(g + -5) equal to 4.123105626 and -4.123105626.

Subproblem 1

g + -5 = 4.123105626 Simplifying g + -5 = 4.123105626 Reorder the terms: -5 + g = 4.123105626 Solving -5 + g = 4.123105626 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + g = 4.123105626 + 5 Combine like terms: -5 + 5 = 0 0 + g = 4.123105626 + 5 g = 4.123105626 + 5 Combine like terms: 4.123105626 + 5 = 9.123105626 g = 9.123105626 Simplifying g = 9.123105626

Subproblem 2

g + -5 = -4.123105626 Simplifying g + -5 = -4.123105626 Reorder the terms: -5 + g = -4.123105626 Solving -5 + g = -4.123105626 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + g = -4.123105626 + 5 Combine like terms: -5 + 5 = 0 0 + g = -4.123105626 + 5 g = -4.123105626 + 5 Combine like terms: -4.123105626 + 5 = 0.876894374 g = 0.876894374 Simplifying g = 0.876894374

Solution

The solution to the problem is based on the solutions from the subproblems. g = {9.123105626, 0.876894374}

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