👤

9. Calculaţi: a) (-4)73: 2144-2512: 523. c) {(-2)²+ [(-2)2195: [(-2)94]2}: 8; e) {(-5)74: [(-5) (-5)70]} {[-5+(-5) f)-[(-2)10: (+4)³-53 33]: (26:4-15³). b) [(-3)-(-3)87 (-3)85]: 5; d) 52+ [(-2)7-25 (-3)2]: [9 (-4)2 -5]; 102]: 103};​