document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=885892>Question 885892</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the approximate values of x that are solutions to f(x) = 0, where<BR>\n" );
document.write( "f(x) = -9x^2 + 8x + 5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #535524 by </B><A HREF=/tutors/aboutme.mpl?userid=kadash12><B>kadash12(6)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=kadash12><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=535524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = -9x^2 + 8x + 5<BR>\n" );
document.write( "0=-9x^2 + 8x + 5    use quadratic equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+formula+ ALIGN=MIDDLE  ALT=\"+formula+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-8+%2B-+sqrt%28+8%5E2-4%2A%28-9%29%2A5+%29%29%2F%282%2A-9%29 ALIGN=MIDDLE  ALT=\"x+=+%28-8+%2B-+sqrt%28+8%5E2-4%2A%28-9%29%2A5+%29%29%2F%282%2A-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = (1/9) 4 +- sqrt61<BR>\n" );
document.write( "which leads to about x=1.312  and x=-0.423 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );