n^2-8n-488=

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Solution for n^2-8n-488= equation:


Simplifying
n2 + -8n + -488 = 0

Reorder the terms:
-488 + -8n + n2 = 0

Solving
-488 + -8n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '488' to each side of the equation.
-488 + -8n + 488 + n2 = 0 + 488

Reorder the terms:
-488 + 488 + -8n + n2 = 0 + 488

Combine like terms: -488 + 488 = 0
0 + -8n + n2 = 0 + 488
-8n + n2 = 0 + 488

Combine like terms: 0 + 488 = 488
-8n + n2 = 488

The n term is -8n.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8n + 16 + n2 = 488 + 16

Reorder the terms:
16 + -8n + n2 = 488 + 16

Combine like terms: 488 + 16 = 504
16 + -8n + n2 = 504

Factor a perfect square on the left side:
(n + -4)(n + -4) = 504

Calculate the square root of the right side: 22.449944321

Break this problem into two subproblems by setting 
(n + -4) equal to 22.449944321 and -22.449944321.

Subproblem 1

n + -4 = 22.449944321 Simplifying n + -4 = 22.449944321 Reorder the terms: -4 + n = 22.449944321 Solving -4 + n = 22.449944321 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + n = 22.449944321 + 4 Combine like terms: -4 + 4 = 0 0 + n = 22.449944321 + 4 n = 22.449944321 + 4 Combine like terms: 22.449944321 + 4 = 26.449944321 n = 26.449944321 Simplifying n = 26.449944321

Subproblem 2

n + -4 = -22.449944321 Simplifying n + -4 = -22.449944321 Reorder the terms: -4 + n = -22.449944321 Solving -4 + n = -22.449944321 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + n = -22.449944321 + 4 Combine like terms: -4 + 4 = 0 0 + n = -22.449944321 + 4 n = -22.449944321 + 4 Combine like terms: -22.449944321 + 4 = -18.449944321 n = -18.449944321 Simplifying n = -18.449944321

Solution

The solution to the problem is based on the solutions from the subproblems. n = {26.449944321, -18.449944321}

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