ibrahimahmedrafaat19 ibrahimahmedrafaat19

16-11-2021
Mathematics

contestada

Solve the equation:
n! / n-2 ! =30

Respuesta :

goddessboi goddessboi

16-11-2021

Answer:

n=6

Step-by-step explanation:

n!/(n-2)! = 30

n(n-1) = 30

n^2 - n = 30

n^2 - n - 30 = 0

(n-6)(n+5) = 0

n=6

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