document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=189833>Question 189833</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Factor completely\r<BR>\n" );
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document.write( "7a^2 – 28b^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142426 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=142426\">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=7a%5E2-28b%5E2 ALIGN=MIDDLE  ALT=\"7a%5E2-28b%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given expression\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%28a%5E2-4b%5E2%29 ALIGN=MIDDLE  ALT=\"7%28a%5E2-4b%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor out the GCF 7\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%28a%5E2-%282b%29%5E2%29 ALIGN=MIDDLE  ALT=\"7%28a%5E2-%282b%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Rewrite <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4b%5E2 ALIGN=MIDDLE  ALT=\"4b%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282b%29%5E2 ALIGN=MIDDLE  ALT=\"%282b%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%28a%2B2b%29%28a-2b%29 ALIGN=MIDDLE  ALT=\"7%28a%2B2b%29%28a-2b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2-%282b%29%5E2 ALIGN=MIDDLE  ALT=\"a%5E2-%282b%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%2B2b%29%28a-2b%29 ALIGN=MIDDLE  ALT=\"%28a%2B2b%29%28a-2b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > (note: use the difference of squares formula)\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7a%5E2-28b%5E2 ALIGN=MIDDLE  ALT=\"7a%5E2-28b%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > completely factors to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%28a%2B2b%29%28a-2b%29 ALIGN=MIDDLE  ALT=\"7%28a%2B2b%29%28a-2b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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