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3. Calculaţi: 125: [5+2¹ : 2¹7 +(2²)]; b) [(5¹)²-5³]: (5².4); c) 50-1460: [125:5² +216 :47 +(2²)']; d) (52020 +52019): (52020-2-52019); 2019 e) [(17-4²) +(65-4) ¹: (2) + [(6) -(6)]-2020-2021 ; A) a) 40-125: 8) 2¹2 2020 2¹ +2535 : 5¹0 - (37)] : [4².2³.221 + (5¹5)² - (3³)].




Dau coroana urgent te rog ​