n^2+n-14.9769=0

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Solution for n^2+n-14.9769=0 equation:


Simplifying
n2 + n + -14.9769 = 0

Reorder the terms:
-14.9769 + n + n2 = 0

Solving
-14.9769 + n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '14.9769' to each side of the equation.
-14.9769 + n + 14.9769 + n2 = 0 + 14.9769

Reorder the terms:
-14.9769 + 14.9769 + n + n2 = 0 + 14.9769

Combine like terms: -14.9769 + 14.9769 = 0.0000
0.0000 + n + n2 = 0 + 14.9769
n + n2 = 0 + 14.9769

Combine like terms: 0 + 14.9769 = 14.9769
n + n2 = 14.9769

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 = 14.9769 + 0.25

Reorder the terms:
0.25 + n + n2 = 14.9769 + 0.25

Combine like terms: 14.9769 + 0.25 = 15.2269
0.25 + n + n2 = 15.2269

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 15.2269

Calculate the square root of the right side: 3.902166065

Break this problem into two subproblems by setting 
(n + 0.5) equal to 3.902166065 and -3.902166065.

Subproblem 1

n + 0.5 = 3.902166065 Simplifying n + 0.5 = 3.902166065 Reorder the terms: 0.5 + n = 3.902166065 Solving 0.5 + n = 3.902166065 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 = 3.902166065 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 3.902166065 + -0.5 n = 3.902166065 + -0.5 Combine like terms: 3.902166065 + -0.5 = 3.402166065 n = 3.402166065 Simplifying n = 3.402166065

Subproblem 2

n + 0.5 = -3.902166065 Simplifying n + 0.5 = -3.902166065 Reorder the terms: 0.5 + n = -3.902166065 Solving 0.5 + n = -3.902166065 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 = -3.902166065 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -3.902166065 + -0.5 n = -3.902166065 + -0.5 Combine like terms: -3.902166065 + -0.5 = -4.402166065 n = -4.402166065 Simplifying n = -4.402166065

Solution

The solution to the problem is based on the solutions from the subproblems. n = {3.402166065, -4.402166065}

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