document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=31400>Question 31400</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395937787/algebrahomeworkh>McDougal Littell Algebra 2</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I need help on finding the least common denominator (LCD) of two rational expressions.\r<BR>\n" );
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document.write( "How do you find out the LCD for these two?\r<BR>\n" );
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document.write( "1/(x^2 - 3x - 28)     ,   x/ (x^2 +6x + 8) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #18102 by </B><A HREF=/tutors/aboutme.mpl?userid=benni1013><B>benni1013(206)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=benni1013><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=18102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First thing to do is factor the bottom for both<BR>\n" );
document.write( "1/(x^2-3x-28)==>1/(x+7)(x+4)<BR>\n" );
document.write( "x/(x^2+6x+8)==>x/(x+4)(x+2)\r<BR>\n" );
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document.write( "To find the common denominator find the things that are similar and disimilar. The things that are disimilar need to be added to the bottom.\r<BR>\n" );
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document.write( "(x+4) is in common<BR>\n" );
document.write( "(x+7), (x+2) aren't so add them to the denominator\r<BR>\n" );
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document.write( "(x+4)(x+7)(x+2) is the lcd. </SPAN>\n" );
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