n^2-n-1520=0

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Solution for n^2-n-1520=0 equation:


Simplifying
n2 + -1n + -1520 = 0

Reorder the terms:
-1520 + -1n + n2 = 0

Solving
-1520 + -1n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '1520' to each side of the equation.
-1520 + -1n + 1520 + n2 = 0 + 1520

Reorder the terms:
-1520 + 1520 + -1n + n2 = 0 + 1520

Combine like terms: -1520 + 1520 = 0
0 + -1n + n2 = 0 + 1520
-1n + n2 = 0 + 1520

Combine like terms: 0 + 1520 = 1520
-1n + n2 = 1520

The n term is -1n.  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.
-1n + 0.25 + n2 = 1520 + 0.25

Reorder the terms:
0.25 + -1n + n2 = 1520 + 0.25

Combine like terms: 1520 + 0.25 = 1520.25
0.25 + -1n + n2 = 1520.25

Factor a perfect square on the left side:
(n + -0.5)(n + -0.5) = 1520.25

Calculate the square root of the right side: 38.99038343

Break this problem into two subproblems by setting 
(n + -0.5) equal to 38.99038343 and -38.99038343.

Subproblem 1

n + -0.5 = 38.99038343 Simplifying n + -0.5 = 38.99038343 Reorder the terms: -0.5 + n = 38.99038343 Solving -0.5 + n = 38.99038343 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 = 38.99038343 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = 38.99038343 + 0.5 n = 38.99038343 + 0.5 Combine like terms: 38.99038343 + 0.5 = 39.49038343 n = 39.49038343 Simplifying n = 39.49038343

Subproblem 2

n + -0.5 = -38.99038343 Simplifying n + -0.5 = -38.99038343 Reorder the terms: -0.5 + n = -38.99038343 Solving -0.5 + n = -38.99038343 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 = -38.99038343 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + n = -38.99038343 + 0.5 n = -38.99038343 + 0.5 Combine like terms: -38.99038343 + 0.5 = -38.49038343 n = -38.49038343 Simplifying n = -38.49038343

Solution

The solution to the problem is based on the solutions from the subproblems. n = {39.49038343, -38.49038343}

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