Hi guys I am back,

So I'm doing logarithmic function exercises in textbook and need to evaluate some. This one is:

log(base)8 .25

My answer book shows the answer as: log(base)8 8^-2/3 = -2/3

I understand this but would like to understand the easiest procedure to go from .25 to its equivalent 8^-2/3

Thanks

Edit: my usual way is to write out the exp form like: 8^x = 1/4, but then I get stuck ha