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| Question 195031:  Hello, I'm reviewing for a final and need some help checking this problem:
 Simplify each expression. Leave only positive exponents in your answers:
 (3a^-1b^2)^-1
 thanks!
 Answer by RAY100(1637)
      (Show Source): 
You can put this solution on YOUR website! ( 3a^-1b^2)^-1 ( 3b^2/a) ^-1
 a / ( 3b^2 )
 .
 checking,  let  a=1,,,b=2,, substitute  in original  and  answer,  both  give  1/12,,, ok
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