SOLUTION: What is the answer to this negative exponents problem {{{ 1 over 9x^-3y^-1 }}} ?

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Question 267733: What is the answer to this negative exponents problem +1+over+9x%5E-3y%5E-1+ ?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
+1+%2F+%289x%5E-3y%5E-1%29+ = %28x%5E3y%29%2F9+; the reciprocal of x and y, gets rid of the neg exponents