# Math Help - factorial

1. ## factorial

how would i expand

(2n+2)!

is it: 2.n.n+0/5.n+1

or cud i say something like 2(n+1)!

help?

2. Originally Posted by sheep99
how would i expand (2n+2)!
Use the definition of the factorial:

. . . . .3! = 1×2×3

. . . . .9! = 1×2×...×8×9

. . . . .101! = 1×2×...×99×100×101

. . . . .m! = 1×2×...×(m-1)×(m)

Have fun!

3. (2n+2)!=....(2n+1)(2n+2) then ?

4. Originally Posted by sheep99
(2n+2)!=....(2n+1)(2n+2) then ?
Review the previous examples, and write the expression for the factorial with an appropriate starting point.