document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=496178>Question 496178</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Give the solution of the following system.<BR>\n" );
document.write( "[y=x^2+4<BR>\n" );
document.write( "y-4x=1] </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #336402 by </B><A HREF=/tutors/aboutme.mpl?userid=unlockmath><B>unlockmath(1688)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=unlockmath><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=unlockmath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=336402\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hello, <BR>\n" );
document.write( "Let's solve this by substituting:<BR>\n" );
document.write( "y=x^2+4<BR>\n" );
document.write( "y-4x=1<BR>\n" );
document.write( "Plug first equation into the second as:<BR>\n" );
document.write( "x^2+4-4x=1<BR>\n" );
document.write( "rearrange and subtract 1 to get:<BR>\n" );
document.write( "x^2-4x+3=0<BR>\n" );
document.write( "Factor:<BR>\n" );
document.write( "(x-3)(x-1)=0<BR>\n" );
document.write( "Solve for x:<BR>\n" );
document.write( "x=3  y=13<BR>\n" );
document.write( "x=1  y=5<BR>\n" );
document.write( "Make sense?<BR>\n" );
document.write( "RJ<BR>\n" );
document.write( "www.math-unlock.com </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );