n^2-4n-41=-8

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Solution for n^2-4n-41=-8 equation:


Simplifying
n2 + -4n + -41 = -8

Reorder the terms:
-41 + -4n + n2 = -8

Solving
-41 + -4n + n2 = -8

Solving for variable 'n'.

Reorder the terms:
-41 + 8 + -4n + n2 = -8 + 8

Combine like terms: -41 + 8 = -33
-33 + -4n + n2 = -8 + 8

Combine like terms: -8 + 8 = 0
-33 + -4n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '33' to each side of the equation.
-33 + -4n + 33 + n2 = 0 + 33

Reorder the terms:
-33 + 33 + -4n + n2 = 0 + 33

Combine like terms: -33 + 33 = 0
0 + -4n + n2 = 0 + 33
-4n + n2 = 0 + 33

Combine like terms: 0 + 33 = 33
-4n + n2 = 33

The n term is -4n.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4n + 4 + n2 = 33 + 4

Reorder the terms:
4 + -4n + n2 = 33 + 4

Combine like terms: 33 + 4 = 37
4 + -4n + n2 = 37

Factor a perfect square on the left side:
(n + -2)(n + -2) = 37

Calculate the square root of the right side: 6.08276253

Break this problem into two subproblems by setting 
(n + -2) equal to 6.08276253 and -6.08276253.

Subproblem 1

n + -2 = 6.08276253 Simplifying n + -2 = 6.08276253 Reorder the terms: -2 + n = 6.08276253 Solving -2 + n = 6.08276253 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + n = 6.08276253 + 2 Combine like terms: -2 + 2 = 0 0 + n = 6.08276253 + 2 n = 6.08276253 + 2 Combine like terms: 6.08276253 + 2 = 8.08276253 n = 8.08276253 Simplifying n = 8.08276253

Subproblem 2

n + -2 = -6.08276253 Simplifying n + -2 = -6.08276253 Reorder the terms: -2 + n = -6.08276253 Solving -2 + n = -6.08276253 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + n = -6.08276253 + 2 Combine like terms: -2 + 2 = 0 0 + n = -6.08276253 + 2 n = -6.08276253 + 2 Combine like terms: -6.08276253 + 2 = -4.08276253 n = -4.08276253 Simplifying n = -4.08276253

Solution

The solution to the problem is based on the solutions from the subproblems. n = {8.08276253, -4.08276253}

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