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4xy - x y ≠ Perfect Square (Posted on 2009-11-01) Difficulty: 3 of 5
Prove that there does not exist any pair (x, y) of positive integers such that: 4xy - x y is a perfect square.

No Solution Yet Submitted by K Sengupta    
Rating: 2.0000 (1 votes)

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  Subject Author Date
Solution, but somewhat dependentHarry2009-11-21 22:31:01
re: No SubjectDaniel2009-11-02 12:33:50
SolutionNo Subjectsubhobrata2009-11-02 02:08:26
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