document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=549364>Question 549364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Factor Completely \r<BR>\n" );
document.write( "\n" );
document.write( "81c^2-121\r<BR>\n" );
document.write( "\n" );
document.write( "I have tried but I am confused because nothing factors into both 81 and 121 can you please help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #357680 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=357680\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Factor Completely \r<BR>\n" );
document.write( "\n" );
document.write( "81c^2-121<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Both 81c^2 and 121 are perfect squares.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=81c%5E2-121+=+%289c%29%5E2+-+11%5E2 ALIGN=MIDDLE  ALT=\"81c%5E2-121+=+%289c%29%5E2+-+11%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The difference of the squares of 2 terms is the sum times the difference.<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "= (9c + 11)*(9c - 11)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );