g^2-16g+30=0

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Solution for g^2-16g+30=0 equation:


Simplifying
g2 + -16g + 30 = 0

Reorder the terms:
30 + -16g + g2 = 0

Solving
30 + -16g + g2 = 0

Solving for variable 'g'.

Begin completing the square.

Move the constant term to the right:

Add '-30' to each side of the equation.
30 + -16g + -30 + g2 = 0 + -30

Reorder the terms:
30 + -30 + -16g + g2 = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -16g + g2 = 0 + -30
-16g + g2 = 0 + -30

Combine like terms: 0 + -30 = -30
-16g + g2 = -30

The g term is -16g.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16g + 64 + g2 = -30 + 64

Reorder the terms:
64 + -16g + g2 = -30 + 64

Combine like terms: -30 + 64 = 34
64 + -16g + g2 = 34

Factor a perfect square on the left side:
(g + -8)(g + -8) = 34

Calculate the square root of the right side: 5.830951895

Break this problem into two subproblems by setting 
(g + -8) equal to 5.830951895 and -5.830951895.

Subproblem 1

g + -8 = 5.830951895 Simplifying g + -8 = 5.830951895 Reorder the terms: -8 + g = 5.830951895 Solving -8 + g = 5.830951895 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + g = 5.830951895 + 8 Combine like terms: -8 + 8 = 0 0 + g = 5.830951895 + 8 g = 5.830951895 + 8 Combine like terms: 5.830951895 + 8 = 13.830951895 g = 13.830951895 Simplifying g = 13.830951895

Subproblem 2

g + -8 = -5.830951895 Simplifying g + -8 = -5.830951895 Reorder the terms: -8 + g = -5.830951895 Solving -8 + g = -5.830951895 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + g = -5.830951895 + 8 Combine like terms: -8 + 8 = 0 0 + g = -5.830951895 + 8 g = -5.830951895 + 8 Combine like terms: -5.830951895 + 8 = 2.169048105 g = 2.169048105 Simplifying g = 2.169048105

Solution

The solution to the problem is based on the solutions from the subproblems. g = {13.830951895, 2.169048105}

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