How do you expand $(3n+3)!$ ?

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Answer 1 · 2016-02-07T05:16:44

$(3n+1)! = 3n+1 xx 3n xx 3n-1 xx 3n-2 xx 3n-3 xx ... xx 1$

the definition of $n!$ is
$n! = n xx n-1 xx n-2 xx n-3 xx...xx 1$

so to answer your question

$(3n+1)! = 3n+1 xx 3n xx 3n-1 xx 3n-2 xx 3n-3 xx ... xx 1$

How do you expand (3n+3)!(3n+3)!?