n^2+n-20350=0

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Solution for n^2+n-20350=0 equation:


Simplifying
n2 + n + -20350 = 0

Reorder the terms:
-20350 + n + n2 = 0

Solving
-20350 + n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '20350' to each side of the equation.
-20350 + n + 20350 + n2 = 0 + 20350

Reorder the terms:
-20350 + 20350 + n + n2 = 0 + 20350

Combine like terms: -20350 + 20350 = 0
0 + n + n2 = 0 + 20350
n + n2 = 0 + 20350

Combine like terms: 0 + 20350 = 20350
n + n2 = 20350

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 = 20350 + 0.25

Reorder the terms:
0.25 + n + n2 = 20350 + 0.25

Combine like terms: 20350 + 0.25 = 20350.25
0.25 + n + n2 = 20350.25

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = 20350.25

Calculate the square root of the right side: 142.654302424

Break this problem into two subproblems by setting 
(n + 0.5) equal to 142.654302424 and -142.654302424.

Subproblem 1

n + 0.5 = 142.654302424 Simplifying n + 0.5 = 142.654302424 Reorder the terms: 0.5 + n = 142.654302424 Solving 0.5 + n = 142.654302424 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 = 142.654302424 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 142.654302424 + -0.5 n = 142.654302424 + -0.5 Combine like terms: 142.654302424 + -0.5 = 142.154302424 n = 142.154302424 Simplifying n = 142.154302424

Subproblem 2

n + 0.5 = -142.654302424 Simplifying n + 0.5 = -142.654302424 Reorder the terms: 0.5 + n = -142.654302424 Solving 0.5 + n = -142.654302424 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 = -142.654302424 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -142.654302424 + -0.5 n = -142.654302424 + -0.5 Combine like terms: -142.654302424 + -0.5 = -143.154302424 n = -143.154302424 Simplifying n = -143.154302424

Solution

The solution to the problem is based on the solutions from the subproblems. n = {142.154302424, -143.154302424}

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