express i factorial notation (n+2)(n+1)n
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Answer:
(n+2)!/(n-1)!
Step-by-step explanation:
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Plugging in numbers shows me that it is the same, but I don't know how to get from one to the other.
I get stuck at:
n!(n+1)=nn!+n!n!(n+1)=nn!+n!
I can't make the connection for the finalth step.
(2n+n)!(2n+n)! doesn't seem right, cause then i would just take n out again and be left with n!n! (n+1)(n+1)which is the same thing that I started with...yeah for U turns.
I get stuck at:
n!(n+1)=nn!+n!n!(n+1)=nn!+n!
I can't make the connection for the finalth step.
(2n+n)!(2n+n)! doesn't seem right, cause then i would just take n out again and be left with n!n! (n+1)(n+1)which is the same thing that I started with...yeah for U turns.
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