Simplifing

ItscomPlicated:

how to simplify (64/81)^-2/3. I know the answer but not how to work it out efficiently.

Are you sure that this is not meant to be
simplify (64/81)^( -3/2)

This would be a much more likely question, is the answer 729/512 = 1 and 217/512 = 1.4238 (5 sig figures)

Anyway I answered my version.

140109 neg indice.JPG

Somehow the answer turned out to be A/B: A= 9*3^(2/3) and B=16. I still don't know how they got that and I keep getting something crazy.

ItscomPlicated:

Somehow the answer turned out to be A/B: A= 9*3^(2/3) and B=16. I still don't know how they got that and I keep getting something crazy.

Hi Complicated,
How's this?
It took me ages to get this to print properly - But it is right now
140110 Latex neg indices.JPG