document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=418948>Question 418948</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by completing the square \r<BR>\n" );
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document.write( "           x^2+9x+20=0 and can you show me how you got that  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293070 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=293070\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> subtracting 20 ___ x^2 + 9x = -20\r<BR>\n" );
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document.write( "when the coefficient of the squared term is one (as in this case)<BR>\n" );
document.write( "___ take half of the 1st order coefficient , square the quantity , add to both sides of equation\r<BR>\n" );
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document.write( "x^2 + 9x + (9/2)^2 = -20 + (9/2)^2\r<BR>\n" );
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document.write( "[x + (9/2)]^2 = -(80/4) + (81/4)\r<BR>\n" );
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document.write( "x + (9/2) = sqrt(1/4)\r<BR>\n" );
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document.write( "x = -(9/2) ± (1/2)\r<BR>\n" );
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document.write( "x = -5 ___ and ___ x = -4 </SPAN>\n" );
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