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1.Calculați:
a) 6^40÷6^38
b)(7^8)^7÷7^54


Răspuns :

a) 6^40:6^38=
    =6^2=36

b) (7^8)^7:7^54=
    =7^56:7^54=
    =7^2=49

    
6^40÷6^38 = 6²=36
(7^8)^7÷7^54= 7^56 ÷7^54 = 7²=49