document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=326695>Question 326695</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi; I was wondering if you could help me with this problem. I am to \"factor our the GCF in each expression.  a(a+1) -3(a+1)<BR>\n" );
document.write( "Can you show me how to do this type question?\r<BR>\n" );
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document.write( "I'm also supposed to \"factor each polynomial. 9a^2 - 64b^2. Can you show me the steps of this one too?\r<BR>\n" );
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document.write( "Thank you so much for your help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #233901 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=233901\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a(a+1) -3(a+1)<BR>\n" );
document.write( "(a+1) is common in the expression<BR>\n" );
document.write( "(a+1)(a-3)<BR>\n" );
document.write( "..<BR>\n" );
document.write( "9a^2 - 64b^2.<BR>\n" );
document.write( "this can be written as<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%283a%29%5E2-%288b%29%5E2+ ALIGN=MIDDLE  ALT=\"+%283a%29%5E2-%288b%29%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "use the difference of squares formuls<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2-b%5E2=%28a%2Bb%29%28a-b%29 ALIGN=MIDDLE  ALT=\"a%5E2-b%5E2=%28a%2Bb%29%28a-b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "In our equation a corresponds to 3a & b corresponds to 3b<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%283a%2B8b%29%283a-8b%29 ALIGN=MIDDLE  ALT=\"+%283a%2B8b%29%283a-8b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );