Question
Find all integers "n" such that ( n+3 over n-1 ) is also an integer.
Answer
<P>Look at it like this:<BR><BR>(n+3) over (n-1) is equal to [(n-1) + 4] over [(n-1)]. <BR><BR>So your expression becomes 1 + (4)/(n-1).<BR><BR>So for what values of n is 4/(n-1) an integer?<BR><BR>n = 2, 3, and 5.<BR><BR>If you're going with negative integers as well, then <BR>n could be 0, -1, or -3.<BR><BR>==============<BR>Joe McCollum<BR>Forest Inventory and Analysis<BR><BR></P>
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