Ответ:
2х-2у/у : х²-у²/у²= 2(х-у)/ у * у²/(х-у)(х+у)=2у/х+у
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Ответ:
2х-2у/у : х²-у²/у²= 2(х-у)/ у * у²/(х-у)(х+у)=2у/х+у