document.write( "Question 240621: 1. 4 over b^-2\r
\n" ); document.write( "\n" ); document.write( "2. -2 over z^-1\r
\n" ); document.write( "\n" ); document.write( "3. -1 over c^0
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Algebra.Com's Answer #176340 by Alan3354(69443)\"\" \"About 
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1. 4 over b^-2
\n" ); document.write( "Multiply NUM and DEN by b^2
\n" ); document.write( "= 4b^2
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\n" ); document.write( "2. -2 over z^-1
\n" ); document.write( "= -2z
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\n" ); document.write( "3. -1 over c^0
\n" ); document.write( "= -1
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