# Proof of Induction

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Thread starter 1 month ago
#1
does anyone know how to prove for
f(n) = n^5+4n —->is divisible by 5
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1 month ago
#2
(Original post by charlottewood333)
does anyone know how to prove for
f(n) = n^5+4n —->is divisible by 5
Yeah try induction and post you attempt and where you get stuck.
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Thread starter 1 month ago
#3
(Original post by RDKGames)
Yeah try induction and post you attempt and where you get stuck.

i didn’t know if i should expand the (k+1)^5 or if there was a way to set it up so i could minus it by k^5
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1 month ago
#4
(Original post by charlottewood333)

i didn’t know if i should expand the (k+1)^5 or if there was a way to set it up so i could minus it by k^5
Where did this red term go?

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Thread starter 1 month ago
#5
(Original post by RDKGames)
Where did this red term go?

ohhhh i got it now thanks
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