Aplicando as propriedades com potencia de mesma base, reduza cada

expressão a uma só potência:

a) [(−4)

7]

2

b) (+5)

4 × (+5)

5

c) (−8)

7 ÷ (−8)

4

ajuda aí prfv tô em prova​


Resposta :

Resposta:

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