document.write( "Question 591215: Type in Factored form:\r
\n" ); document.write( "\n" ); document.write( "3u+21=
\n" ); document.write( "

Algebra.Com's Answer #375551 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
3u+21=3(u+7)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Here the GCF of 3u and 21 is 3. We then factor it out.
\n" ); document.write( "
\n" );