n^2+17n+6=0

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Solution for n^2+17n+6=0 equation:


Simplifying
n2 + 17n + 6 = 0

Reorder the terms:
6 + 17n + n2 = 0

Solving
6 + 17n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + 17n + -6 + n2 = 0 + -6

Reorder the terms:
6 + -6 + 17n + n2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 17n + n2 = 0 + -6
17n + n2 = 0 + -6

Combine like terms: 0 + -6 = -6
17n + n2 = -6

The n term is 17n.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17n + 72.25 + n2 = -6 + 72.25

Reorder the terms:
72.25 + 17n + n2 = -6 + 72.25

Combine like terms: -6 + 72.25 = 66.25
72.25 + 17n + n2 = 66.25

Factor a perfect square on the left side:
(n + 8.5)(n + 8.5) = 66.25

Calculate the square root of the right side: 8.139410298

Break this problem into two subproblems by setting 
(n + 8.5) equal to 8.139410298 and -8.139410298.

Subproblem 1

n + 8.5 = 8.139410298 Simplifying n + 8.5 = 8.139410298 Reorder the terms: 8.5 + n = 8.139410298 Solving 8.5 + n = 8.139410298 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + n = 8.139410298 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + n = 8.139410298 + -8.5 n = 8.139410298 + -8.5 Combine like terms: 8.139410298 + -8.5 = -0.360589702 n = -0.360589702 Simplifying n = -0.360589702

Subproblem 2

n + 8.5 = -8.139410298 Simplifying n + 8.5 = -8.139410298 Reorder the terms: 8.5 + n = -8.139410298 Solving 8.5 + n = -8.139410298 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + n = -8.139410298 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + n = -8.139410298 + -8.5 n = -8.139410298 + -8.5 Combine like terms: -8.139410298 + -8.5 = -16.639410298 n = -16.639410298 Simplifying n = -16.639410298

Solution

The solution to the problem is based on the solutions from the subproblems. n = {-0.360589702, -16.639410298}

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