document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=8430>Question 8430</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having trouble with factoring by grouping.This is the problem: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab%2B7b-3a-21 ALIGN=MIDDLE  ALT=\"ab%2B7b-3a-21\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Could you please help me out? Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #4647 by </B><A HREF=/tutors/aboutme.mpl?userid=drglass><B>drglass(89)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drglass><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=4647\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Start by separating the equation into two groups. Let's start with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab ALIGN=MIDDLE  ALT=\"ab\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7b ALIGN=MIDDLE  ALT=\"7b\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Factor <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"b\"   DISABLED_style= \"max-width:90%; height:auto;\" > from these terms to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%28a+%2B+7%29+-+3a+-+21 ALIGN=MIDDLE  ALT=\"b%28a+%2B+7%29+-+3a+-+21\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Next factor -3 from <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3a ALIGN=MIDDLE  ALT=\"-3a\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-21 ALIGN=MIDDLE  ALT=\"-21\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%28a+%2B+7%29+-+3%28a+%2B+7%29 ALIGN=MIDDLE  ALT=\"b%28a+%2B+7%29+-+3%28a+%2B+7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Finally, factor <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a+%2B+7%29 ALIGN=MIDDLE  ALT=\"%28a+%2B+7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a+%2B+7%29%28b+-+3%29 ALIGN=MIDDLE  ALT=\"%28a+%2B+7%29%28b+-+3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );