document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=126768>Question 126768</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395585368/algebrahomeworkh>Algebra and Trigonometry</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I come up with a comon denominator for this equation?<BR>\n" );
document.write( " 5/2r+1 - 3/2r-1 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #92872 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=92872\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The same way you would come up with a common denominator for any set of fractions whose denominators have no factors in common -- multiply them together.  Fortunately in this case, the task is relatively simple because the two denominators are the factors of the difference of two squares.\r<BR>\n" );
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