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Calculaţi: a) 10²-(5²-5-6-7+17-7):10-32; b) {1²+2³- [3-45:2-(2)]}:3² +10° - 0¹0; c) (25³)*: (3² + 4²)³⁰ -0³-3⁰+ (4-6)²-5²;​

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