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FoolForMath Group TitleBest ResponseYou've already chosen the best response.2
\( \large \sum \limits_{k=1}^{n} k!(k^2+k+1) = (n+1)!(n+1)1 \) PS: Latex Tip included ;)
 2 years ago

Mr.Math Group TitleBest ResponseYou've already chosen the best response.3
You should show work, so others can learn :)
 2 years ago

Zarkon Group TitleBest ResponseYou've already chosen the best response.2
\[k^2+k+1=(k+1)^2k\]
 2 years ago

Zarkon Group TitleBest ResponseYou've already chosen the best response.2
is my hint good enough?
 2 years ago

FoolForMath Group TitleBest ResponseYou've already chosen the best response.2
One more hint, \( \large \sum \limits_{k=1}^{n} k\times k! = (n+1)! 1\)
 2 years ago

FoolForMath Group TitleBest ResponseYou've already chosen the best response.2
oops MR.Math is great :)
 2 years ago

Mr.Math Group TitleBest ResponseYou've already chosen the best response.3
lol, I already know the answer. I just wanted to post something, and I think it's a nice problem.
 2 years ago

FoolForMath Group TitleBest ResponseYou've already chosen the best response.2
haha :)
 2 years ago

FoolForMath Group TitleBest ResponseYou've already chosen the best response.2
Mr.Math here: http://openstudy.com/study#/updates/4f2ebf12e4b0571e9cbaf294 ;)
 2 years ago
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