n^2-18n-144=0

Solution for n^2-18n-144=0 equation:

Simplifying
n2 + -18n + -144 = 0

Reorder the terms:
-144 + -18n + n2 = 0

Solving
-144 + -18n + n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(-6 + -1n)(24 + -1n) = 0

Subproblem 1
Set the factor '(-6 + -1n)' equal to zero and attempt to solve:

Simplifying
-6 + -1n = 0

Solving
-6 + -1n = 0

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

Add '6' to each side of the equation.
-6 + 6 + -1n = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -1n = 0 + 6
-1n = 0 + 6

Combine like terms: 0 + 6 = 6
-1n = 6

Divide each side by '-1'.
n = -6

Simplifying
n = -6
Subproblem 2
Set the factor '(24 + -1n)' equal to zero and attempt to solve:

Simplifying
24 + -1n = 0

Solving
24 + -1n = 0

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

Add '-24' to each side of the equation.
24 + -24 + -1n = 0 + -24

Combine like terms: 24 + -24 = 0
0 + -1n = 0 + -24
-1n = 0 + -24

Combine like terms: 0 + -24 = -24
-1n = -24

Divide each side by '-1'.
n = 24

Simplifying
n = 24
Solution
n = {-6, 24}