Question

Not sure what to do with this:

Eliminate negative exponents and simplify the expression:

Answer 1

(Posting the problem in a moment.)

Answer 2

\[(3a ^{-1}b ^{2})^{-2}(a ^{-4}b)^{-1}\]

Answer 3

What I did was:
\[(\frac{ 1 }{ 9 }a ^{2}b ^{-4})(a ^{4}b ^{-1})\]...\[\frac{ a ^{6}b ^{-5} }{ 9 }\]...
Not sure where to go from there.

Answer 4

you are done