document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=457206>Question 457206</A>: <I><SPAN STYLE=\"word-break: break-all;\"> simplify by removing factors of 1\r<BR>\n" );
document.write( "\n" );
document.write( "r^2-81/r^2-18r+81\r<BR>\n" );
document.write( "\n" );
document.write( "I can simplify this to (r-9)(9+r)/r^2+63   but I am not sure what they want or mean by removing the factor of 1\r<BR>\n" );
document.write( "\n" );
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 #313697 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=313697\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It's not r^2 + 63, it's (r-9)^2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );