n^2+16n-1=0

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Solution for n^2+16n-1=0 equation:


Simplifying
n2 + 16n + -1 = 0

Reorder the terms:
-1 + 16n + n2 = 0

Solving
-1 + 16n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 16n + 1 + n2 = 0 + 1

Reorder the terms:
-1 + 1 + 16n + n2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 16n + n2 = 0 + 1
16n + n2 = 0 + 1

Combine like terms: 0 + 1 = 1
16n + n2 = 1

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

Add '64' to each side of the equation.
16n + 64 + n2 = 1 + 64

Reorder the terms:
64 + 16n + n2 = 1 + 64

Combine like terms: 1 + 64 = 65
64 + 16n + n2 = 65

Factor a perfect square on the left side:
(n + 8)(n + 8) = 65

Calculate the square root of the right side: 8.062257748

Break this problem into two subproblems by setting 
(n + 8) equal to 8.062257748 and -8.062257748.

Subproblem 1

n + 8 = 8.062257748 Simplifying n + 8 = 8.062257748 Reorder the terms: 8 + n = 8.062257748 Solving 8 + n = 8.062257748 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + n = 8.062257748 + -8 Combine like terms: 8 + -8 = 0 0 + n = 8.062257748 + -8 n = 8.062257748 + -8 Combine like terms: 8.062257748 + -8 = 0.062257748 n = 0.062257748 Simplifying n = 0.062257748

Subproblem 2

n + 8 = -8.062257748 Simplifying n + 8 = -8.062257748 Reorder the terms: 8 + n = -8.062257748 Solving 8 + n = -8.062257748 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + n = -8.062257748 + -8 Combine like terms: 8 + -8 = 0 0 + n = -8.062257748 + -8 n = -8.062257748 + -8 Combine like terms: -8.062257748 + -8 = -16.062257748 n = -16.062257748 Simplifying n = -16.062257748

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.062257748, -16.062257748}

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