How do you simplify (9!)/(7!2!)?

2 Answers
Aug 17, 2016

I got 36

Explanation:

We can write: 9!"=9*8*7!
So that our expression becomes:
(9*8*cancel(7!))/(cancel(7!)2!)=(9*8)/(2*1)=9*4=36

Aug 17, 2016

(9!)/(7!2!)=36

Explanation:

(9!)/(7!2!)=(9xx8xxcancel(7xx6xx5xx4xx3xx2xx1))/cancel(7xx6xx5xx4xx3xx2xx1)xx1/(2xx1) = 72/2 = 36