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Prime Division HELP 
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#1
Nov211, 09:08 AM

P: 18

1. The problem statement, all variables and given/known data
I need to be able to understand and likely prove that for any positive odd integer n, 8  (n^2 1 ) 2. Relevant equations 3. The attempt at a solution odd can be said to be n = 2k +1 so 8  (2k + 1)^2 1 


#2
Nov211, 09:14 AM

P: 2,179

Keep going. Now expand out (2k+1)^2  1 and collect terms. Then think about the terms in k and k+1.



#3
Nov211, 09:22 AM

P: 18

I got stumped trying mathematical induction i was hoping for a new approach



#4
Nov211, 09:56 AM

Mentor
P: 21,216

Prime Division HELP
Try the approach that phyzguy is suggesting.



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