document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=225282>Question 225282</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find an integer such that square of the integer is eighty one less than eigtheen times the integer </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #168129 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=168129\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2=18x-81<BR>\n" );
document.write( "x^2-18x+81=0<BR>\n" );
document.write( "(x-9)^2=0<BR>\n" );
document.write( "x-9=0<BR>\n" );
document.write( "x=9 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "9^2=18*9-81<BR>\n" );
document.write( "81=162-81<BR>\n" );
document.write( "81=81 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );