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How many ordered combinations of (x, y) are possible?

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If x^2 - y^3 is a positive non zero integer for all possible integral values of x, y satisfying 1 =< x =< 9 and 1 =< y =< 9 then how many ordered combinations of (x, y) are possible?

posted Nov 29, 2014 by anonymous

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1 Answer

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20 Combination...

answer Dec 1, 2014 by Kshitij Maloo
What r those??
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