Gasiti toate solutiile ecuatiei \( a+b-c-d=p \), unde \( a,b,c,d \) sunt intregi pozitivi astfel incat \( ab=cd \), iar \( p \) este numar prim.
Iurie Boreico, Mathematical Reflections 1/2009
Ecuatie
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Claudiu Mindrila
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Ecuatie
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Claudiu Mindrila
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