How do you solve (9!)/(6!3!)9!6!3! ?

1 Answer
Kushagra ยท F. Javier B.
Mar 24, 2018

Lettuce not without thinking solve its factorial and divide... expand it... I'm not writing one as it doesn't matter
(color(red)cancel9^3xxcolor(skyblue)cancel8^4xx7xxcancel6xxcancel5xxcancel4xxcancel3xxcancel2)/(cancel6xxcancel5xxcancel4xxcancel3xxcancel2xxcolor(red)cancel3xxcolor(skyblue)cancel2)
We are left with
3xx4xx7
84

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