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7. Calculaţi: a) 4³7: (2-27¹)+(3+3-105): 106; b) 3³+3 10:38-3+3-37:35+2-3¹0: (5.35 + 35) + 9.3³; c) [3². 3³ +254: 252 + (35)4 : 320] : 31; d) (3 : 3¹8 + (24)5 + 623 : 6¹³] : [(3³)² · (2²)³ +3¹7-3¹³ + (2³)*]; e) 10- {24²:576+3 [(322) ¹5 (329. 2¹5) +1²¹]} : 13; f) 2100 [250.248 +(210 2¹5)5: 227 +(576: 575 -3) ⁹⁰0-28 +298]; g) [37-310 +2203:2108-5 (5²)5]: (3¹7+295-511).​

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