document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=914320>Question 914320</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how to multiply (a^2 + 8a +15 / a^2 + 7a +12)(3a +12 / a^2 - 25) ?? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #555064 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=555064\">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=%28%28a%5E2+%2B+8a+%2B15%29+%2F+%28a%5E2+%2B+7a+%2B12%29%29%28%283a+%2B12%29+%2F+%28a%5E2+-+25%29+%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > ......multiply  numerator by numerator, and denominator by denominator\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28a%5E2+%2B+8a+%2B15%29%283a+%2B12%29%29+%2F+%28%28a%5E2+%2B+7a+%2B12%29%28a%5E2+-+25%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > ...factor all terms\r<BR>\n" );
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document.write( "first<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2+%2B+8a+%2B15=a%5E2%2B3a%2B5a%2B15=+%28a%5E2%2B3a%29%2B%285a%2B15%29+=a%28a%2B3%29%2B5%28a%2B3%29=+%28a%2B5%29%28a%2B3%29+ ALIGN=MIDDLE   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=3a+%2B12=3%28a%2B4%29 ALIGN=MIDDLE  ALT=\"3a+%2B12=3%28a%2B4%29\"   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=a%5E2+%2B+7a+%2B12=+a%5E2%2B3a%2B4a%2B12=%28a%5E2%2B3a%29%2B%284a%2B12%29=a%28a%2B3%29%2B4%28a%2B3%29=+%28a%2B4%29%28a%2B3%29+ ALIGN=MIDDLE   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=a%5E2+-+25=a%5E2-5%5E2=%28a-5%29%28a%2B5%29 ALIGN=MIDDLE  ALT=\"a%5E2+-+25=a%5E2-5%5E2=%28a-5%29%28a%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "now substitute all:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+%28a%2B5%29%28a%2B3%29%2A+3%28a%2B4%29%29+%2F+%28+%28a%2B4%29%28a%2B3%29%28a-5%29%28a%2B5%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > ...reduce\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+cross%28%28a%2B5%29%29cross%28%28a%2B3%29%29+3cross%28%28a%2B4%29%29%29+%2F+%28cross%28+%28a%2B4%29%29cross%28%28a%2B3%29%29%28a-5%29cross%28%28a%2B5%29%29%29 ALIGN=MIDDLE   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=+3+%2F%28a-5%29 ALIGN=MIDDLE  ALT=\"+3+%2F%28a-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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