document.write( "Question 28887: I am trying to re-write the following expression using negative exponents:\r
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\n" ); document.write( "\n" ); document.write( "The book gives the answer as:\r
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\n" ); document.write( "\n" ); document.write( "How did they get this? All of the example problems about writing equivalent expressions using negative exponents have been limited to single literals, often with the answer containing a 1 in the numerator.
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Algebra.Com's Answer #15775 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
\"a%5E%28-3%29\" is the same thing as \"1%2Fa%5E3\"... whichever power you have as a \"numerator\", either positive or negative, the opposite version lies on the denominator.\r
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\n" ); document.write( "\n" ); document.write( "so \"x%5E2\" is the same thing as \"1%2Fx%5E%28-2%29\"\r
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\n" ); document.write( "\n" ); document.write( "and \"1%2Fy%5E2\" is the same thing as \"y%5E%28-2%29\"\r
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\n" ); document.write( "\n" ); document.write( "hence \"x%5E2%2Fy%5E2\" is \"y%5E%28-2%29%2Fx%5E%28-2%29\"\r
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\n" ); document.write( "\n" ); document.write( "jon.
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