Question

Anyone know how to do this...

Answer 1

\[\log _{8}576-\log _{8}9\]

Answer 2

log to base 8 is the power needed to raise 8 to get the number in question.

576 = 8^n , where n is logbase8 of 576

use log base ten instead

log(576) = 2.76 = n log(8) = n 0.903

n = 2.76/0.903 = 3.056

check 8^3.056 = 575.8 close enough
etc.