document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151898>Question 151898</A>: <I><SPAN STYLE=\"word-break: break-all;\"> factorise 20ax-15ay-4bx+3by </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111652 by </B><A HREF=/tutors/aboutme.mpl?userid=orca><B>orca(409)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=orca><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=111652\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First, the terms need to be re-grouped.\r<BR>\n" );
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document.write( "20ax -15ay -4bx + 3by<BR>\n" );
document.write( "= (20ax -15ay) - (4bx - 3by)<BR>\n" );
document.write( "= 5a(4x - 3y) - b(4x - 3y)<BR>\n" );
document.write( "= (4x -3y)(5a - b)<BR>\n" );
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