1.

Simplify this problem please...​

Answer» ONG>Answer:

512 / 125

Step-by-step explanation:

(5/8)^-7 = (8/5)^7

(8/5)^7 × (8/5)^-4 = (8/5)^ 7-4

= (8/5)^3

= 8^3/5^3

= 512/125



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