document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119293>Question 119293</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the value of k if one exact x-intercept of y=x^2+kx+1 is 3+2sqrt2 ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87380 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=87380\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the value of k if one exact x-intercept of y=x^2+kx+1 is 3+2sqrt2 ?<BR>\n" );
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document.write( "If 3+2sqrt2 is a root f(3+2sqrt2)=0<BR>\n" );
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document.write( "Therefore: (3+2sqrt2)^2 + k(3+2sqrt2)+1 = 0<BR>\n" );
document.write( "k(3+2sqrt2)= -(3+2sqrt2)^2-1<BR>\n" );
document.write( "k = -(3+2sqrt2) -1/(3+2sqrt2)<BR>\n" );
document.write( "k = -(3+2sqrt2) - (3-2sqrt2)/(9-8)<BR>\n" );
document.write( "k = -3-2sqrt2-3+2sqrt2<BR>\n" );
document.write( "k = -6<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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