document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=48287>Question 48287</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the value of k so that the equation will have exactly on rational solution.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36x%5E2%2Bkx%2B49=0 ALIGN=MIDDLE  ALT=\"36x%5E2%2Bkx%2B49=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #31998 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=31998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 36x^2+kx+49=0<BR>\n" );
document.write( "discriminant = b^2-4ac<BR>\n" );
document.write( "discriminat must be zero to have one rational solution<BR>\n" );
document.write( "k^2-4(36)(49)=0<BR>\n" );
document.write( "k^2=4(36)(49)<BR>\n" );
document.write( "k=2(6)(7)<BR>\n" );
document.write( "k=+84 or -84\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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