document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=322072>Question 322072</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x^2 + 10x = 300<BR>\n" );
document.write( "Find the positive value for x.<BR>\n" );
document.write( "Give your answer correct to 3 significant figures.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230564 by </B><A HREF=/tutors/aboutme.mpl?userid=Jk22><B>Jk22(389)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Jk22><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=Jk22><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230564\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2+10x-300=0\r<BR>\n" );
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document.write( "x=(-10+sqrt(100+1200))/2=-5+5*sqrt(13)=5(-1+sqrt(13)) (+ to get a positive ans)\r<BR>\n" );
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document.write( "Square root of 13 can be extracted manually :\r<BR>\n" );
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document.write( "13...|3,605<BR>\n" );
document.write( "9----|<BR>\n" );
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document.write( "40.0.|66x6=396<BR>\n" );
document.write( "396..|<BR>\n" );
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document.write( "40.0.|680x0<BR>\n" );
document.write( "40000|6805x5\r<BR>\n" );
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document.write( "hence : x=5*2,605~13,025 </SPAN>\n" );
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