a) V bucata= 2 la puterea a 3a = 8 cm cubi
b) V cub= 4 la putetea a 3a = 64 cm cubi
=> V corp obtinut = V cub - V bucata = 64-8 = 56 cm cubi
At cub = 6 × 4 la putetea a2a = 6× 16 = 96 cm patrati
At bucata = 6 × 2 la puterea a2a = 6× 4 = 24 cm patrati
=> At corp obtinut = At cub - At bucata = 96-24 = 72 cm patrati
Sper ca ai inteles :))