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Chris labels every lattice point in the coordinate plane with the square of the distance from the point to the origin (a lattice point is a point such that both of its coordinates are integers). How many times does he label a point with the number 25?

 Jul 9, 2020
 #1
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(\pm 25,0), (0, \pm 25), (\pm 9, \pm 12), (\pm 12, \pm 9) ==> 12 points

 Jul 9, 2020

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