5-th APMO,1993

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Masum
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5-th APMO,1993

Unread post by Masum » Thu Mar 24, 2011 2:31 pm

$P4.$ Find all positive integers $n$ for which $x^n + (x+2)^n + (2-x)^n = 0$ has an integral solution.
One one thing is neutral in the universe, that is $0$.

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