Factorial Notation question (1 Viewer)

[omgiloverice]

Simplify (n+2)!-(n+1)! by taking out common factor???

according to the answers its (n+1)! (n+1) o.o?

 

[Carrotsticks]

 

[omgiloverice]

Can i ask where you got (n+1)!(n+2-1) ?
I'm not very good at this..

 

[Timske]

Can i ask where you got (n+1)!(n+2-1) ?
I'm not very good at this..

Factorise (n+1)! out

 

[xDarkSilent]

you're factorising it .
if you cant see it , try letting (n+1)! being y and (n+2) be x . so what he did is

xy! - y!

y!(x-1)

(n+1)! (n+2-1)

see it ?

 

[Skeptyks]

Can i ask where you got (n+1)!(n+2-1) ?
I'm not very good at this..

he took out the common factor of (n+1)!

edit: nvm people already answered it -.-

 

[uniquee]

you're factorising it .
if you cant see it , try letting (n+1)! being y and (n+2) be x . so what he did is

xy! - y!

y!(x-1)

(n+1)! (n+2-1)

see it ?

so smart!

 

[omgiloverice]

OMG!! FDSHAKUIHDSHAFFHUDHSALF HOW DID I NOT NOTICE THAT >__>'''
sorry sorry sorry >< i just went full retard... :L

 

[Skeptyks]

OMG!! FDSHAKUIHDSHAFFHUDHSALF HOW DID I NOT NOTICE THAT >__>'''
sorry sorry sorry >< i just went full retard... :L

its easy to not notice shit in maths ;]

 

[zeebobDD]

you're factorising it .
if you cant see it , try letting (n+1)! being y and (n+2) be x . so what he did is

xy! - y!

y!(x-1)

(n+1)! (n+2-1)

see it ?

ohhh yeah i see it dark silent thanks for your great help man excellent simplification

 

[RealiseNothing]

k can be anything, so just let k = n + 1: