Răspunsuri

Cel mai inteligent răspuns!
2014-11-16T18:01:08+02:00
(2+3a)³=(2+3a)²(2+3a)=(4+6a+3a²)(2+3a)=8+12a+12a+18a²+6a²+9a³=9a³+24a²+24a+8
1 5 1