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Let \(a\) and \(b\) be integers.
How many pairs \((a, b)\) such as
\[\dfrac {a^2+b}{b^2-a} ,\dfrac {b^2+a}{a^2-b}\] are both integers?

Note by Ißra Jörg
11 months, 2 weeks ago

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i think so it is 6. Ayush Rai · 10 months, 4 weeks ago

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the answer is 6. Abhishek Alva · 10 months, 3 weeks ago

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APMO 2002, right? Shourya Pandey · 11 months ago

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This was given at Romanian JBMO TST 2- 2014 Tudor Darius Cardas · 11 months, 2 weeks ago

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