document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=38723>Question 38723</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the value of \"a\" such that<BR>\n" );
document.write( "y^2 - 18y + a<BR>\n" );
document.write( "is a perfect square. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #24249 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=24249\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A perfect square should be a set of values square. An example: (x+1)^2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2+-+18y+%2B+a ALIGN=MIDDLE  ALT=\"y%5E2+-+18y+%2B+a\"   DISABLED_style= \"max-width:90%; height:auto;\" > First, determine a value times the leading coefficient that give you factors that add up to (-18)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2+-+18y+%2B+81 ALIGN=MIDDLE  ALT=\"y%5E2+-+18y+%2B+81\"   DISABLED_style= \"max-width:90%; height:auto;\" > pick 81 because the factors: -9,-9 give you the answer<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y%5E2+-+9y%29+%2B+%28-9y+%2B+81%29 ALIGN=MIDDLE  ALT=\"%28y%5E2+-+9y%29+%2B+%28-9y+%2B+81%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%28y+-+9%29+-+9%28y+-+9%29 ALIGN=MIDDLE  ALT=\"y%28y+-+9%29+-+9%28y+-+9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y+-+9%29%28y+-+9%29 ALIGN=MIDDLE  ALT=\"%28y+-+9%29%28y+-+9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+81 ALIGN=MIDDLE  ALT=\"a+=+81\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );