n^2+4n+3=2016

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Solution for n^2+4n+3=2016 equation:


Simplifying
n2 + 4n + 3 = 2016

Reorder the terms:
3 + 4n + n2 = 2016

Solving
3 + 4n + n2 = 2016

Solving for variable 'n'.

Reorder the terms:
3 + -2016 + 4n + n2 = 2016 + -2016

Combine like terms: 3 + -2016 = -2013
-2013 + 4n + n2 = 2016 + -2016

Combine like terms: 2016 + -2016 = 0
-2013 + 4n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2013' to each side of the equation.
-2013 + 4n + 2013 + n2 = 0 + 2013

Reorder the terms:
-2013 + 2013 + 4n + n2 = 0 + 2013

Combine like terms: -2013 + 2013 = 0
0 + 4n + n2 = 0 + 2013
4n + n2 = 0 + 2013

Combine like terms: 0 + 2013 = 2013
4n + n2 = 2013

The n term is 4n.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4n + 4 + n2 = 2013 + 4

Reorder the terms:
4 + 4n + n2 = 2013 + 4

Combine like terms: 2013 + 4 = 2017
4 + 4n + n2 = 2017

Factor a perfect square on the left side:
(n + 2)(n + 2) = 2017

Calculate the square root of the right side: 44.911023146

Break this problem into two subproblems by setting 
(n + 2) equal to 44.911023146 and -44.911023146.

Subproblem 1

n + 2 = 44.911023146 Simplifying n + 2 = 44.911023146 Reorder the terms: 2 + n = 44.911023146 Solving 2 + n = 44.911023146 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + n = 44.911023146 + -2 Combine like terms: 2 + -2 = 0 0 + n = 44.911023146 + -2 n = 44.911023146 + -2 Combine like terms: 44.911023146 + -2 = 42.911023146 n = 42.911023146 Simplifying n = 42.911023146

Subproblem 2

n + 2 = -44.911023146 Simplifying n + 2 = -44.911023146 Reorder the terms: 2 + n = -44.911023146 Solving 2 + n = -44.911023146 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + n = -44.911023146 + -2 Combine like terms: 2 + -2 = 0 0 + n = -44.911023146 + -2 n = -44.911023146 + -2 Combine like terms: -44.911023146 + -2 = -46.911023146 n = -46.911023146 Simplifying n = -46.911023146

Solution

The solution to the problem is based on the solutions from the subproblems. n = {42.911023146, -46.911023146}

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