Răspunsuri

2014-11-09T19:35:50+02:00
(y-3)³=(y)³-3×(y)²×3+3×y×(3)²-(3)³=y³-9y²+27y-27
(y+1)³=(y)³+3×(y)²×1+3×y×(1)²+(1)³=y³+3y²+3y+1
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