document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=375940>Question 375940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, the problem i am having is with subsitution in a qudratic equation.<BR>\n" );
document.write( "x^2-xy=10 (1)<BR>\n" );
document.write( "x+y=8 (2)<BR>\n" );
document.write( " Thank you. I worked it out using the qudratic formula but i would like to know if it's right before handing my assignment in to my teacher I need it by tommrrow morning 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 #267354 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=267354\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2-xy=10 (1)<BR>\n" );
document.write( "x+y=8 (2)<BR>\n" );
document.write( "x=8-y<BR>\n" );
document.write( "plug value of x in (1)<BR>\n" );
document.write( "(8-y)^2-(8-y)y-10=0<BR>\n" );
document.write( "64-16y+y^2-8y+y^2-10=0<BR>\n" );
document.write( "2y^2-24y+54=0<BR>\n" );
document.write( "/2<BR>\n" );
document.write( "y^2-12y+27=0<BR>\n" );
document.write( "y^2-9y-3y+27=0<BR>\n" );
document.write( "y(y-9)-3(y-9)=0<BR>\n" );
document.write( "(y-3)(y-9)=0<BR>\n" );
document.write( "y = 3 , y=9<BR>\n" );
document.write( "y=3, x=5<BR>\n" );
document.write( "y=9,x=-1<BR>\n" );
document.write( "...<BR>\n" );
document.write( "m.ananth@hotmail.ca </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );