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8. Efectuați calculele: a) (2²-24-25)²: (2³) + (25-2³)²: (25)³;
b) (37)²: (3²-34)² + 35-36 (32)5 +3³-3: (3);
c) (2³) : (2³-25)² + (2²²-26: (2³)³ +2³-2: 2²;
d) (7³3-7² · 76)²: (77)³ + (7² - 76)²: (75)³.​


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