(n+2)!/n!=72 tentukan nilai n ?

By Admin ReiPosted on December 5, 2022

(n+2)!/n!=72 tentukan nilai n ?

$frac{(n + 2) (n + 1)(n)}{(n)} \ {n }^{2} + 3n + 2 = 72 \ {n}^{2} + 3n - 70 = 0 \ (n - 7)(n + 10) \ : n = 7 : : : : n = - 10 \$
jawaban nya n = 7