+0  
 
0
898
1
avatar

How many positive integers \(n\) less than 100 have a corresponding integer \(m\) divisible by 3 such that the roots of \(x^2-nx+m=0\) are consecutive positive integers?

 Jun 4, 2019
 #1
avatar+33614 
+3

As follows:

 

Edit:  I was unnecessarily complicated above:  All I needed to say is n2-1 must be divisible by 12.

 Jun 4, 2019
edited by Alan  Jun 4, 2019

3 Online Users