document.write( "Question 759572: -8^-5/3 = -1/(8^5/3) = -1/(8^1/3)^5 = -1/32 What steps are being done between these answers?\r
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Algebra.Com's Answer #462621 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
-8^(-5/3) = -1/(8^(5/3)) = -1/(8^(1/3))^5 = -1/32
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\n" ); document.write( "The first two equal signs are just the definition of negative exponent and the definition of rational exponent (with a minus sign in front of each expression).
\n" ); document.write( "I cannot imagine any intermediate steps there.
\n" ); document.write( "Definition of rational exponent (for positive \"b\" and positive integers \"m\" and \"n\"):
\n" ); document.write( "\"b%5E%28m%2Fn%29=%28b%5E%281%2Fn%29%29%5Em\" or \"%28root%28n%2Cb%29%29%5Em\" or \"%28b%5Em%29%5E%281%2Fn%29\" or \"root%28n%2Cb%5Em%29\"
\n" ); document.write( "I cannot imagine any intermediate steps there.
\n" ); document.write( "Definition of negative exponent (for any \"x\" if \"b\" is positive):
\n" ); document.write( "\"b%5E%28-x%29=1%2Fb%5Ex\"
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\n" ); document.write( "The last equal sign could be explained by
\n" ); document.write( "\"8=2%5E3\"
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\n" ); document.write( "and \"2%5E5=32\"
\n" ); document.write( "You could write out more in-between steps there, but I would think that anything more than
\n" ); document.write( "... = -1/(8^1/3)^5 = 1/2^5 = -1/32
\n" ); document.write( "is overkill.
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