document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=313371>Question 313371</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (3+ &#8730;x)^2 + 3(3+&#8730;x)-10=0<BR>\n" );
document.write( "u = (3+&#8730;x)<BR>\n" );
document.write( "u^2= (3+&#8730;x)^2<BR>\n" );
document.write( "u^2 + 3u - 10 = 0<BR>\n" );
document.write( "x= [-b ± &#8730;(b^2-4ac)] ÷ 2a<BR>\n" );
document.write( "-3 ± &#8730;(3^2-4(1)(-10)) ÷ (2)(1) <BR>\n" );
document.write( "-3 ± &#8730;(9 + 40 )÷ 2<BR>\n" );
document.write( "-3 ± &#8730;(49 ) ÷ 2<BR>\n" );
document.write( "-3 + 7 = 4/2 = 2<BR>\n" );
document.write( "-3 – 7 = -10/2 = -5\r<BR>\n" );
document.write( "\n" );
document.write( "What did I do wrong? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #224083 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=224083\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Nothing. It looks good.<BR>\n" );
document.write( "But you're not done yet.<BR>\n" );
document.write( "Remember you solved for u. <BR>\n" );
document.write( "You should have u in the quadratic formula and not x. <BR>\n" );
document.write( "Now find x using your original substitution.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u=3%2Bsqrt%28x%29 ALIGN=MIDDLE  ALT=\"u=3%2Bsqrt%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );