document.write( "Question 714933: How do you multiply radicals? For example -4radical15 multiplyed by -radical3 \n" ); document.write( "

Algebra.Com's Answer #439046 by Alan3354(69443) $\"\"$ $\"About$

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How do you multiply radicals? For example -4radical15 multiplyed by -radical3
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\n" ); document.write( "If by radical you mean square root:
\n" ); document.write( " $\"-4sqrt%2815%29%2A%28-1%29sqrt%283%29\"$
\n" ); document.write( "Multiply what's outside and what's inside
\n" ); document.write( "= $\"4%2Asqrt%2815%2A3%29+=+4sqrt%2845%29\"$
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\n" ); document.write( "= $\"4sqrt%289%29%2Asqrt%285%29\"$
\n" ); document.write( "= $\"12sqrt%285%29\"$
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\n" ); document.write( "The indices have to be the same.
\n" ); document.write( "You can't mix square roots and cube roots, eg. \n" ); document.write( "

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