Intergers: let n~ be defined by n~ = 2n(n+1). What is the value of 8~/2~ ?

[lsmith130]

For any positive integer n, let n~ be defined by n~ = 2n(n+1). What is the value of 8~/2~ ?

 

[ksdhart]

Well, you have an expression for n~, that is for some unknown value n. ​So, what do you think the expression would be when n=8? How does that relate to the value of 8~? And similarly for n=2, how does that relate to the value of 2~?