(x+7)+(x^2+9x+19)=180

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Solution for (x+7)+(x^2+9x+19)=180 equation:


Simplifying
(x + 7) + (x2 + 9x + 19) = 180

Reorder the terms:
(7 + x) + (x2 + 9x + 19) = 180

Remove parenthesis around (7 + x)
7 + x + (x2 + 9x + 19) = 180

Reorder the terms:
7 + x + (19 + 9x + x2) = 180

Remove parenthesis around (19 + 9x + x2)
7 + x + 19 + 9x + x2 = 180

Reorder the terms:
7 + 19 + x + 9x + x2 = 180

Combine like terms: 7 + 19 = 26
26 + x + 9x + x2 = 180

Combine like terms: x + 9x = 10x
26 + 10x + x2 = 180

Solving
26 + 10x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
26 + -180 + 10x + x2 = 180 + -180

Combine like terms: 26 + -180 = -154
-154 + 10x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-154 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '154' to each side of the equation.
-154 + 10x + 154 + x2 = 0 + 154

Reorder the terms:
-154 + 154 + 10x + x2 = 0 + 154

Combine like terms: -154 + 154 = 0
0 + 10x + x2 = 0 + 154
10x + x2 = 0 + 154

Combine like terms: 0 + 154 = 154
10x + x2 = 154

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

Add '25' to each side of the equation.
10x + 25 + x2 = 154 + 25

Reorder the terms:
25 + 10x + x2 = 154 + 25

Combine like terms: 154 + 25 = 179
25 + 10x + x2 = 179

Factor a perfect square on the left side:
(x + 5)(x + 5) = 179

Calculate the square root of the right side: 13.37908816

Break this problem into two subproblems by setting 
(x + 5) equal to 13.37908816 and -13.37908816.

Subproblem 1

x + 5 = 13.37908816 Simplifying x + 5 = 13.37908816 Reorder the terms: 5 + x = 13.37908816 Solving 5 + x = 13.37908816 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 13.37908816 + -5 Combine like terms: 5 + -5 = 0 0 + x = 13.37908816 + -5 x = 13.37908816 + -5 Combine like terms: 13.37908816 + -5 = 8.37908816 x = 8.37908816 Simplifying x = 8.37908816

Subproblem 2

x + 5 = -13.37908816 Simplifying x + 5 = -13.37908816 Reorder the terms: 5 + x = -13.37908816 Solving 5 + x = -13.37908816 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -13.37908816 + -5 Combine like terms: 5 + -5 = 0 0 + x = -13.37908816 + -5 x = -13.37908816 + -5 Combine like terms: -13.37908816 + -5 = -18.37908816 x = -18.37908816 Simplifying x = -18.37908816

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.37908816, -18.37908816}

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