document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=128042>Question 128042</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Factor.3a^2(a-b)-6a(a-b)+21(a-b)\r<BR>\n" );
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document.write( "Please assist me with the proper way to do this problem. \r<BR>\n" );
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document.write( "Possible answers: A: (3a – b)(a^2 – 2a + 7), B:3(a – b)(a^2 – 6a + 21), <BR>\n" );
document.write( "C:(a – b)(3a^2 – 6a + 21)D:3(a – b)(a^2 – 2a + 7).\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #93750 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=93750\">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=3a%5E2%28a-b%29-6a%28a-b%29%2B21%28a-b%29 ALIGN=MIDDLE  ALT=\"3a%5E2%28a-b%29-6a%28a-b%29%2B21%28a-b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "All of the terms have a common factor of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a-b ALIGN=MIDDLE  ALT=\"a-b\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so start with that.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a-b%29%283a%5E2-6a%2B21%29 ALIGN=MIDDLE  ALT=\"%28a-b%29%283a%5E2-6a%2B21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now the coefficients on the trinomial part have a common factor of 3, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%28a-b%29%28a%5E2-2a%2B7%29 ALIGN=MIDDLE  ALT=\"3%28a-b%29%28a%5E2-2a%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which I believe is your answer D.  Final answer, Regis. </SPAN>\n" );
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