How to solve this problem?

[anniexrec]

Solve (?n+?(n+1))(?n-?(n-1)) =1
is it true for n greater than less than 1 two different ways
How would you show in general if true?
if simplified what would it look like?

 

[mmm4444bot]

… n greater than less than 1 … What does this mean?

I'm thinking that there is no solution for the equation that you typed.

Will you please double-check your typing? (This is what the [Preview] button is for; you'll find it next to the [Submit] button.)

 

[anniexrec]

(?n+?n+1))(?n-?n-1) =1

square root n + square root n +1 multiplied by square root n - square root n-1 apprently = 1
problem my instructor posted

is it true for n greater than or equal to1 two different ways
How would you show in general if true?
if simplified what would it look like?