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1. Rezolvă: a) (2³.3²-6²): 2²+2 b) [(15²:5-3²) +12]:6 c) [(2³)4: (25)² + (5³)7: (54)5]: 3-3 d) 3².5-24:2 e) 3-(5²-4²)-6
Plsssss am nevoie de ajutor.​