180=x^2+16x+131

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Solution for 180=x^2+16x+131 equation:


Simplifying
180 = x2 + 16x + 131

Reorder the terms:
180 = 131 + 16x + x2

Solving
180 = 131 + 16x + x2

Solving for variable 'x'.

Combine like terms: 180 + -131 = 49
49 + -16x + -1x2 = 131 + 16x + x2 + -131 + -16x + -1x2

Reorder the terms:
49 + -16x + -1x2 = 131 + -131 + 16x + -16x + x2 + -1x2

Combine like terms: 131 + -131 = 0
49 + -16x + -1x2 = 0 + 16x + -16x + x2 + -1x2
49 + -16x + -1x2 = 16x + -16x + x2 + -1x2

Combine like terms: 16x + -16x = 0
49 + -16x + -1x2 = 0 + x2 + -1x2
49 + -16x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
49 + -16x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-49 + 16x + x2 = 0

Move the constant term to the right:

Add '49' to each side of the equation.
-49 + 16x + 49 + x2 = 0 + 49

Reorder the terms:
-49 + 49 + 16x + x2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 16x + x2 = 0 + 49
16x + x2 = 0 + 49

Combine like terms: 0 + 49 = 49
16x + x2 = 49

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

Add '64' to each side of the equation.
16x + 64 + x2 = 49 + 64

Reorder the terms:
64 + 16x + x2 = 49 + 64

Combine like terms: 49 + 64 = 113
64 + 16x + x2 = 113

Factor a perfect square on the left side:
(x + 8)(x + 8) = 113

Calculate the square root of the right side: 10.630145813

Break this problem into two subproblems by setting 
(x + 8) equal to 10.630145813 and -10.630145813.

Subproblem 1

x + 8 = 10.630145813 Simplifying x + 8 = 10.630145813 Reorder the terms: 8 + x = 10.630145813 Solving 8 + x = 10.630145813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 10.630145813 + -8 Combine like terms: 8 + -8 = 0 0 + x = 10.630145813 + -8 x = 10.630145813 + -8 Combine like terms: 10.630145813 + -8 = 2.630145813 x = 2.630145813 Simplifying x = 2.630145813

Subproblem 2

x + 8 = -10.630145813 Simplifying x + 8 = -10.630145813 Reorder the terms: 8 + x = -10.630145813 Solving 8 + x = -10.630145813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -10.630145813 + -8 Combine like terms: 8 + -8 = 0 0 + x = -10.630145813 + -8 x = -10.630145813 + -8 Combine like terms: -10.630145813 + -8 = -18.630145813 x = -18.630145813 Simplifying x = -18.630145813

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.630145813, -18.630145813}

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