00:01
We're being asked to find the value of 9 factorial divided by 6 factorial.
00:04
Well, remember, 9 factorial means to multiply all of the whole numbers from 9 all the way down to 1.
00:09
So you multiply 9 times 8, times 7, times 6, times 5, times 4, times 3, times 2, times 1.
00:16
And for 6 factorial, this means to multiply all of the whole numbers from 6 all the way down to 1.
00:21
So in other words, 6 times 5, times 4, times 3, times 2, times 1...