document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=587741>Question 587741</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the radius of this equation x^2+y^2+16x+10y+80=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #374548 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=374548\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the radius of this equation <BR>\n" );
document.write( "x^2+y^2+16x+10y+80=0<BR>\n" );
document.write( "complete the squares<BR>\n" );
document.write( "(x^2+16x+64)+(y^2+10y+25)=-80+64+25<BR>\n" );
document.write( "(x+8)^2+(y+5)^2=5<BR>\n" );
document.write( "This is a circle with center at (-8,-5) and radius=&#8730;5<BR>\n" );
document.write( "Standard form of equation for a circle: (x-h)^2+(y-k)^2=r^2, (h,k) being the coordinates of the center and r=radius. </SPAN>\n" );
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