document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=133006>Question 133006</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Factor the trinomial.\r<BR>\n" );
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document.write( "v^3 - 4v^2 - 21v\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97214 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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/cgi-bin/show-face.mpl?user=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=97214\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%5E3+-+4v%5E2+-+21v ALIGN=MIDDLE  ALT=\"v%5E3+-+4v%5E2+-+21v\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "To begin with, there is at least one 'v' in every term, so factor that out:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%28v%5E2-4v-21%29 ALIGN=MIDDLE  ALT=\"v%28v%5E2-4v-21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now we know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2A-7=-21 ALIGN=MIDDLE  ALT=\"3%2A-7=-21\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3-7=-4 ALIGN=MIDDLE  ALT=\"3-7=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%5E2-4v-21=%28v%2B3%29%28v-7%29 ALIGN=MIDDLE  ALT=\"v%5E2-4v-21=%28v%2B3%29%28v-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Putting it all together:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%5E3+-+4v%5E2+-+21v=v%28v%2B3%29%28v-7%29 ALIGN=MIDDLE  ALT=\"v%5E3+-+4v%5E2+-+21v=v%28v%2B3%29%28v-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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