Question

ajudem, por favor
URGENTE!!!

Answer 1

Resposta:

Explicação passo-a-passo:

a.

4^3/4^5.4^8=

4^(3-5).4^8=

4^-2.4^8=

4^-2+8=

4^6

b

(2/3)^8.(2/3)^-7.(2/3)^5=

(2/3)^8-7.(2/3)^5=

(2/3)^1.(2/3)^5=

(2/3)^1+5=

(2/3)^6