Today's problem: Suma de cuburi...


	Friday, 18 november 2011

Suma de cuburi...

Proposed by petrebatranetu Offline


(3 comments)	9.438 times displayed

Se poate scrie numarul 3^2011 ca o suma de patru cuburi perfecte? Justificati raspunsul!


View the Solution 3^2011=3^43^2007=(1+8+8+64)3^2007=(3^667)^3+(23^667)^3+(23^667)^3+(4*3^667)^3

Tags:

suma, cuburi

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