document.write( "Question 831462: simplify. write your answer with only positive exponents (r^3)^-5 over r (r^3)^-4 \n" ); document.write( "
Algebra.Com's Answer #501367 by hovuquocan1997(83)\"\" \"About 
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(r^3)^-5 over r(r^3)^-4 \r
\n" ); document.write( "\n" ); document.write( "= r^-15 over r(r^-12) \r
\n" ); document.write( "\n" ); document.write( "= r^-15 over r^-11\r
\n" ); document.write( "\n" ); document.write( "= r^-4 \r
\n" ); document.write( "\n" ); document.write( "= 1 over r^4
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