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Old 2006-10-29, 21:44   #7
S485122
 
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Sep 2006
Brussels, Belgium

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Sorry, as you will have understood English is not my mother tongue. Especially not for mathematics. And I must admit that restarting to do computations after 33 years does not go very smoothly.

I indeed used "or" where I meant "which can also be written as".

My presentation of the solutions was indeed sloppy, I should have repeated the first set of solutions (any integer x with y=x), plus the solutions of the x2+y2+xy-3x-3y=0 part.

Finally I mentioned the {0,0} pair since it is not only a solution of the x=y part but also of the x2+y2+xy-3x-3y=0 part (a double solution?)
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