document.write( "Question 639861: Hi
\n" ); document.write( "This question has to do with negative exponents. I am trying to rewrite this expression without negative exponents.\r
\n" ); document.write( "\n" ); document.write( "a^-1 - b^-1
\n" ); document.write( "___________
\n" ); document.write( "a^-3 - b^-3\r
\n" ); document.write( "\n" ); document.write( "I believe the answer is:\r
\n" ); document.write( "\n" ); document.write( "a^2b^2
\n" ); document.write( "_________________
\n" ); document.write( "a^2+ab+b^2\r
\n" ); document.write( "\n" ); document.write( "I just don't know the steps on how to get there.\r
\n" ); document.write( "\n" ); document.write( "Thank you
\n" ); document.write( "Regards
\n" ); document.write( "Mike
\n" ); document.write( "

Algebra.Com's Answer #403124 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi
\n" ); document.write( "This question has to do with negative exponents. I am trying to rewrite this expression without negative exponents.\r
\n" ); document.write( "\n" ); document.write( "a^-1 - b^-1
\n" ); document.write( "___________
\n" ); document.write( "a^-3 - b^-3\r
\n" ); document.write( "\n" ); document.write( "I believe the answer is:\r
\n" ); document.write( "\n" ); document.write( "a^2b^2
\n" ); document.write( "_________________
\n" ); document.write( "a^2+ab+b^2\r
\n" ); document.write( "\n" ); document.write( "I just don't know the steps on how to get there.\r
\n" ); document.write( "\n" ); document.write( "Thank you
\n" ); document.write( "Regards
\n" ); document.write( "Mike\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28a%5E-1+-+b%5E-1%29%2F%28a%5E-3+-+b%5E-3%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Let's change these negative-exponent expressions to positive-exponent expressions:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%281%2Fa%5E1+-+1%2Fb%5E1%29%2F%281%2Fa%5E3+-+1%2Fb%5E3%29\" ----- \"%281%2Fa+-+1%2Fb%29\" ÷ \"%281%2Fa%5E3+-+1%2Fb%5E3%29\" ---- \"%28%28b+-+a%29%2Fab%29\" ÷ \"%28%28b%5E3+-+a%5E3%29%2Fa%5E3b%5E3%29\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28b+-+a%29%2Fab%29+%2A+%28a%5E3b%5E3%2F%28b%5E3+-+a%5E3%29%29\" ----- Change division to multiplication and invert\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28b+-+a%29%2Fab%29+%2A+%28a%5E3b%5E3%2F%28%28b+-+a%29%28b%5E2+%2B+ab+%2B+a%5E2%29%29%29\" ---- Factoring \"b%5E3+-+a%5E3\" \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " ------ \"highlight_green%28%28a%5E2b%5E2%29%2F%28b%5E2+%2B+ab+%2B+a%5E2%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com
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