document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=759696>Question 759696</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is subtracting rational expressions with the answer in factored form. I've been having trouble trying to figure this problem out. The r and x variables keep throwing me off when trying to subtract and find the common denominator. please help me \r<BR>\n" );
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document.write( "7x+3r..........................2x-r<BR>\n" );
document.write( "______........----- _________ <BR>\n" );
document.write( "4xr^3 ........................x^2-r^2\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462156 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=462156\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7x+3r..........................2x-r<BR>\n" );
document.write( "______........----- _________ <BR>\n" );
document.write( "4xr^3 ........................x^2-r^2\r<BR>\n" );
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document.write( "Least common denominator: 4xr^3(x^2-r^2)<BR>\n" );
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document.write( "[(7x+3r)(x^2-r^2) - (2x-r)(4xr^3]/lcd<BR>\n" );
document.write( "----<BR>\n" );
document.write( "= {[7x^3 -7r^2 + 3rx^2 -3r^3] - [8x^2r^3-4xr^4]}/ lcd<BR>\n" );
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document.write( "There are no common terms in the numerator.<BR>\n" );
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document.write( "= Repeat the last expression.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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