document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1000266>Question 1000266</A>: <I><SPAN STYLE=\"word-break: break-all;\"> by completing the square,find in, terms of k, the roots of the equation\r<BR>\n" );
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document.write( "x^2+2kx-7=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #617738 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=617738\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> by completing the square,find in, terms of k, the roots of the equation<BR>\n" );
document.write( "x^2 + 2kx - 7 = 0<BR>\n" );
document.write( "x^2 + 2kx + ____ = 7<BR>\n" );
document.write( "To complete the square, divide the coefficient of x by 2 and square it, add to both sides<BR>\n" );
document.write( "x^2 + 2kx + k^2 = 7 + k^2<BR>\n" );
document.write( "(x + k)^2 = 7 + k^2<BR>\n" );
document.write( "Find the square root of both sides<BR>\n" );
document.write( "x + k = +/-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28k%5E2%2B7%29 ALIGN=MIDDLE  ALT=\"sqrt%28k%5E2%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "x = -k + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28k%5E2%2B7%29 ALIGN=MIDDLE  ALT=\"sqrt%28k%5E2%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "x = -k - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28k%5E2%2B7%29 ALIGN=MIDDLE  ALT=\"sqrt%28k%5E2%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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