document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=469606>Question 469606</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The formula N = 2x^2+6x+3 represents the number of households N, in thousands, in a certain city that have a computer x years after1990. According to the formula, in what year were there 59 thousand households with computers in this city? ( for this problem ignore any negative solutions.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322171 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=322171\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 59=2x2+6x+3<BR>\n" );
document.write( "2x2+6x-56=0<BR>\n" );
document.write( "x2+3x-28=0<BR>\n" );
document.write( "(x+7)(x-4)=0<BR>\n" );
document.write( "x=-7 or 4<BR>\n" );
document.write( "Throwing out the negative answer, we get x=4, so the year was 1990 + 4=1994.. </SPAN>\n" );
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