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2014-05-17T15:14:40-03:00
(9-X^5)^3 = > (9-X^5) . (9X^5) = 81 - 9X^5 - 9X^5 + X ^10 =81 - 18X^5 + X ^10 (81 - 18X^5 + X^10) . ( 9 - X^5) = 729 - 81X^5 - 162X^5 + 18X^10 + 9X^10 - X^15 =729 - 243X^5 + 27X^10 - X^15
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