roccapm
roccapm
13-03-2021
Mathematics
contestada
Show that n(n – 1)(n + 1) + 6n ≡ n3 + 5n
Respuesta :
FancyBun
FancyBun
13-03-2021
Answer:
Explanation:
n(n - 1)(n + 1) + 6n = n^3 + 5n
n(n^2 - 1) + 6n = n^3 + 5n
n^3 - n + 6n = n^3 + 5n
n^3 + 5n = n^3 + 5n (proven)
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