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Maths cubed numbers

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What is 28, 72 and 1125 as a result of two cubed numbers?
 Sep 8, 2013

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28 = 27 + 1 = 3^3 + 1^3; 72 = 64 + 8 = 4^3 + 2^3, 1125 = 1000 + 125 = 10^3 + 5^3
 Sep 9, 2013

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