n^2+n=4.4

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Solution for n^2+n=4.4 equation:


Simplifying
n2 + n = 4.4

Reorder the terms:
n + n2 = 4.4

Solving
n + n2 = 4.4

Solving for variable 'n'.

Reorder the terms:
-4.4 + n + n2 = 4.4 + -4.4

Combine like terms: 4.4 + -4.4 = 0.0
-4.4 + n + n2 = 0.0

Begin completing the square.

Move the constant term to the right:

Add '4.4' to each side of the equation.
-4.4 + n + 4.4 + n2 = 0.0 + 4.4

Reorder the terms:
-4.4 + 4.4 + n + n2 = 0.0 + 4.4

Combine like terms: -4.4 + 4.4 = 0.0
0.0 + n + n2 = 0.0 + 4.4
n + n2 = 0.0 + 4.4

Combine like terms: 0.0 + 4.4 = 4.4
n + n2 = 4.4

The n term is n.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
n + 0.25 + n2 = 4.4 + 0.25

Reorder the terms:
0.25 + n + n2 = 4.4 + 0.25

Combine like terms: 4.4 + 0.25 = 4.65
0.25 + n + n2 = 4.65

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 4.65

Calculate the square root of the right side: 2.156385865

Break this problem into two subproblems by setting 
(n + 0.5) equal to 2.156385865 and -2.156385865.

Subproblem 1

n + 0.5 = 2.156385865 Simplifying n + 0.5 = 2.156385865 Reorder the terms: 0.5 + n = 2.156385865 Solving 0.5 + n = 2.156385865 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + n = 2.156385865 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 2.156385865 + -0.5 n = 2.156385865 + -0.5 Combine like terms: 2.156385865 + -0.5 = 1.656385865 n = 1.656385865 Simplifying n = 1.656385865

Subproblem 2

n + 0.5 = -2.156385865 Simplifying n + 0.5 = -2.156385865 Reorder the terms: 0.5 + n = -2.156385865 Solving 0.5 + n = -2.156385865 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + n = -2.156385865 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -2.156385865 + -0.5 n = -2.156385865 + -0.5 Combine like terms: -2.156385865 + -0.5 = -2.656385865 n = -2.656385865 Simplifying n = -2.656385865

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.656385865, -2.656385865}

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