Question

Persamaan n?
(n-3)! / (n-1)! = 132

Answer 1

(n - 3)! / (n - 1)! = 132
(n - 3)(n - 2)(n - 1)! / (n - 1)! = 132
n² - 5n + 6 = 132
n² - 5n - 126 = 0
(n - 14)(n + 9) = 0
ambil n = 14