MEMO 2009 ekipno problem 7


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April 28, 2012
2009 MEMO diofantska tb
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Find all pairs (m,\,n) of integers which satisfy the equation (m + n)^4 = m^2n^2 + m^2 + n^2 + 6mn.
Source: Srednjoeuropska matematička olimpijada 2009, ekipno natjecanje, problem 7