Melody

Oh Chris, your joke is soooo corny (or is that chalky, like plaster?).    :) 

LOL  What do you think Ginger.  Can Max be your snap?

Why is (2n)! / (2n + 2)! = 1 / (2n + 2) (2n + 1)?

\(\frac{ (2n)! }{ (2n + 2)! }\\= \frac{ (2n)! }{ (2n)! * (2n+1)*(2n+2)}\\= \frac{1}{1* (2n+1)*(2n+2)}\\= \frac{1}{(2n+1)(2n+2)}\\\)

eg

\(if\;\; n=3\\ =\frac{(2*3)!}{(2*3+2)!}\\ =\frac{(6)!}{(6+2)!}\\ =\frac{(6)!}{(8)!}\\ =\frac{1*2*3*4*5*6}{1*2*3*4*5*6*7*8}\\ =\frac{1}{7*8}\\ =\frac{1}{56}\\\)

0/unendlich

\(\frac{0}{\infty}=0\)

Yep Chris is right too but if my way can be used to answer a multiple choice question (as you implied it was) even if the function is difficult to factor :)

My way is always easy :)

Hey Rosala, 

Did you see this post from yesteday..

Yes Rosala,

Guest thought it was amusing that he/she was drinking fake champagne :)

Adults often celebrate such occasions with real champagne :)

Hi Rosala,

It is always great to see you on the forum and I hope that 2017 is a great year for you!

I was chatting on line and posting a "Happy New Year" message on the forum at about that time on New Years Eve.

I was also listening to a New years eve concert on tele and feeling content and happy :) 

which of the following is a root of the polynomial function? F(x)=x^3+3x^2+4x+12

Your question is not complete but it doesn't matter.

IF the number a is a root then  f(a)=0

Yes why is that so?  

You should be able to answer because your question is as useless as they come.