document.write( "Question 174806: how do i multiply r^2+7r+10/3 by 3r-30/r^2-5r-50? \n" ); document.write( "
Algebra.Com's Answer #129869 by Alan3354(69443)\"\" \"About 
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how do i multiply r^2+7r+10/3 by 3r-30/r^2-5r-50?
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\n" ); document.write( "The same as any other fractions. You multiply the NUMs and the DENs.
\n" ); document.write( "\"%28%28r%5E2%2B7r%2B10%29%2F3%29%2A%28%283r-30%29%2F%28r%5E2-5r-50%29%29\"
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\n" ); document.write( "Cancel the 3s
\n" ); document.write( "=\"%28%28r%5E2%2B7r%2B10%29%2A%283r-30%29%29%2F%283%2A%28r%5E2-5r-50%29%29\"
\n" ); document.write( "=\"%28%28r%2B5%29%2A%28r%2B2%29%2A%28r-10%29%29%2F%28%28r-10%29%2A%28r%2B5%29%29\"
\n" ); document.write( "Cancel (r+5) and (r-10)
\n" ); document.write( "=\"%28r%2B2%29\"
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