document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=138443>Question 138443</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the center and radius by completing the square.<BR>\n" );
document.write( "x^2+y^2+10x+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 #101095 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=101095\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the center and radius by completing the square.<BR>\n" );
document.write( "x^2+y^2+10x+7=0<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Complete the square on the x-terms and the y-terms separately.\r<BR>\n" );
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document.write( "x^2 + 10x + 25 + y^2 = -7+25<BR>\n" );
document.write( "(x+5)^2 + (y-0)^2 = 18<BR>\n" );
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document.write( "Center at (-5,0)<BR>\n" );
document.write( "radius = sqrt(18) = 3sqrt(2)\r<BR>\n" );
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document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );