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B=2•11la puterea2+11puterea3+(1puterea2+12puterea1)puterea2

Răspuns :

raspunsul final este 1742
11la puterea2 =121 si x2=242
11la puterea3=1331 apoi aduni 1331+242=1573
(1puterea2+12puterea1)puterea2=1puterea2+2x1x12+12puterea2=1+24+144=169
169+1573=1742