how is 64^[log(base8)5] = 15?

I don't understand how to get 25..
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1 Answer

it is not = 15

it is = 25

64 is 8^2 and log(base 8) and an exponential function with base 8 are inverses of each other.  So you are left with 5^2 = 25
by Level 5 User (11.9k points)

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