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1998 IMO Shortlist Problems/N1

Revision as of 04:09, 16 August 2011 by Mathmdmb (talk | contribs) (Created page with "== Problem == Find all pairs of positive integers <math>(a,b)</math> such that, <cmath>ab^2+b+7|a^2b+a+b</cmath>")
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Problem

Find all pairs of positive integers $(a,b)$ such that, \[ab^2+b+7|a^2b+a+b\]

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