n^2-4n-1=-5

Solution for n^2-4n-1=-5 equation:

Simplifying
n2 + -4n + -1 = -5

Reorder the terms:
-1 + -4n + n2 = -5

Solving
-1 + -4n + n2 = -5

Solving for variable 'n'.

Reorder the terms:
-1 + 5 + -4n + n2 = -5 + 5

Combine like terms: -1 + 5 = 4
4 + -4n + n2 = -5 + 5

Combine like terms: -5 + 5 = 0
4 + -4n + n2 = 0

Factor a trinomial.
(2 + -1n)(2 + -1n) = 0

Subproblem 1
Set the factor '(2 + -1n)' equal to zero and attempt to solve:

Simplifying
2 + -1n = 0

Solving
2 + -1n = 0

Move all terms containing n to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + -1n = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1n = 0 + -2
-1n = 0 + -2

Combine like terms: 0 + -2 = -2
-1n = -2

Divide each side by '-1'.
n = 2

Simplifying
n = 2
Subproblem 2
Set the factor '(2 + -1n)' equal to zero and attempt to solve:

Simplifying
2 + -1n = 0

Solving
2 + -1n = 0

Move all terms containing n to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + -1n = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1n = 0 + -2
-1n = 0 + -2

Combine like terms: 0 + -2 = -2
-1n = -2

Divide each side by '-1'.
n = 2

Simplifying
n = 2
Solution
n = {2, 2}