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1.Calculati:
(3^9:3^6+2^4:2):7


Răspuns :

(3⁹:3⁶ + 2⁴:2): 7= (3⁹⁻⁶+ 2⁴-¹):7 = (3³ + 2³):7=(27 + 8):7 = 35:7 = 5

[tex] ({3}^{9} \div {3}^{6} + {2}^{4} \div 2) \div 7 = ( {3}^{9 - 6} + {2}^{4 - 1}) \div 7 =( {3}^{3} + {2}^{3} ) \div 7 = (27 + 8) \div 7 = 35 \div 7 = 5[/tex]
Sper ca te-am ajutat!