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t bo 2. Efectuați: a) 2³.5+3² (5²-2³-3) +144:9; b) 34:32:3° +2³ (7²-24 .3)+576:48; c) 3.2³ +2018° +(25-3².7) 20¹7 +12-108:81; 2018 d) 26:4+02018 +3² (54 +38:36) +7.(2².5² -3².11) ²⁰⁰8; e) 4² +5² +6² +2.(4²2²-2³-8) +25-16:50; f) [5-(5² +3² : 320)+(3²)]2+ (285-81):102​