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If there exists only one ordered pair of natural number (x, y) : x^3 - y^3 = xy + 61 then find xy?

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If there exists only one ordered pair of natural number (x, y) : x^3 - y^3 = xy + 61 then find xy?
posted Jun 17, 2019 by anonymous

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1 Answer

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30


x=6, y=5, xy=30

answer Jun 17, 2019 by Hanifa Mammadov
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