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Another Quickie (Posted on 2011-03-13) Difficulty: 2 of 5
Let n and a be positive integers such that 3n^2=4a-1.

Prove that a is a difference of consecutive cubes.

See The Solution Submitted by broll    
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  Subject Author Date
re: spoilerbroll2011-03-14 01:43:19
SolutionspoilerAdy TZIDON2011-03-13 16:31:14
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