document.write( "Question 160539: Use rational exponents to simplify. Write the answer in radical notation, if possible
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Algebra.Com's Answer #118454 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Use the definition rule:  \"root%28N%2CX%5EM%29=X%5E%28M%2FN%29\"\r\n" );
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document.write( "\"root%286%2Ca%5E4%29=a%5E%284%2F6%29\"\r\n" );
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document.write( "But then we can reduce the fraction exponent \"4%2F6\" to \"2%2F3\"\r\n" );
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document.write( "\"root%286%2Ca%5E4%29=a%5E%284%2F6%29=a%5E%282%2F3%29\"\r\n" );
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document.write( "Now use the above definition rule in reverse \"X%5E%28M%2FN%29=root%28N%2CX%5EM%29\"\r\n" );
document.write( "to get it back to a radical:\r\n" );
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document.write( "\"root%286%2Ca%5E4%29=a%5E%284%2F6%29=a%5E%282%2F3%29=root%283%2Ca%5E2%29\"\r\n" );
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document.write( "Edwin
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