document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=31501>Question 31501</A>: <I><SPAN STYLE=\"word-break: break-all;\"> factor completely<BR>\n" );
document.write( "12x^yz^3-15xyz^3<BR>\n" );
document.write( "so far I have<BR>\n" );
document.write( "3xy(4xz^2-5y)<BR>\n" );
document.write( "3xy[x(2z)^2-5y]<BR>\n" );
document.write( "I just don't have the last step </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #18169 by </B><A HREF=/tutors/aboutme.mpl?userid=mukhopadhyay><B>mukhopadhyay(490)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mukhopadhyay><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=18169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 12x^yz^3-15xyz^3<BR>\n" );
document.write( "so far I have<BR>\n" );
document.write( "3xy(4xz^2-5y)<BR>\n" );
document.write( "3xy[x(2z)^2-5y]<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "=3xy[{sqrt(x)}^2(2z)^2 - sqrt(5y)^2]<BR>\n" );
document.write( "=3xy[2zsqrt(x) + sqrt(5y)][2zsqrt(x) - sqrt(5y)] (using a^2-b^2=(a+b)(a-b)) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );