document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=305479>Question 305479</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please help solve this using the quadratic formula ?  thank you\r<BR>\n" );
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document.write( "5x^2-16x-84=0\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #218778 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=218778\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5x^2-16x-84=0<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "x=(16+-sqrt[16^2-4*5*-84])/2*5<BR>\n" );
document.write( "x=(16+-sqrt[256+1,680])/10<BR>\n" );
document.write( "x=(16+-sqrt[1,936)/10<BR>\n" );
document.write( "x=(16+-44)/10<BR>\n" );
document.write( "x=(16+44)/10<BR>\n" );
document.write( "x=60/10<BR>\n" );
document.write( "x=6 ans.<BR>\n" );
document.write( "x=(16-44)/10<BR>\n" );
document.write( "x=-28/10<BR>\n" );
document.write( "x=2.8 ans. </SPAN>\n" );
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