document.write( "Question 195031: Hello, I'm reviewing for a final and need some help checking this problem: \r
\n" ); document.write( "\n" ); document.write( "Simplify each expression. Leave only positive exponents in your answers:\r
\n" ); document.write( "\n" ); document.write( "(3a^-1b^2)^-1\r
\n" ); document.write( "\n" ); document.write( "thanks!
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Algebra.Com's Answer #146339 by RAY100(1637)\"\" \"About 
You can put this solution on YOUR website!
( 3a^-1b^2)^-1
\n" ); document.write( "( 3b^2/a) ^-1
\n" ); document.write( "a / ( 3b^2 )
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\n" ); document.write( "checking, let a=1,,,b=2,, substitute in original and answer, both give 1/12,,, ok
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