document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1088722>Question 1088722</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 + 2x = 17 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #703021 by </B><A HREF=/tutors/aboutme.mpl?userid=natolino_2017><B>natolino_2017(77)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=natolino_2017><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=703021\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First remember the formula: (x+a)^2 = x^2 + 2ax + a^2.\r<BR>\n" );
document.write( "\n" );
document.write( "so (x+1)^2 = x^2 + 2x + 1.\r<BR>\n" );
document.write( "\n" );
document.write( "using this on x^2 + 2x  = 17<BR>\n" );
document.write( "   <BR>\n" );
document.write( "(x+1)^2 - 1 = 17\r<BR>\n" );
document.write( "\n" );
document.write( "(x+1)^2 = 18\r<BR>\n" );
document.write( "\n" );
document.write( "abs(x+1) = sqrt(18) = 3sqrt(2)\r<BR>\n" );
document.write( "\n" );
document.write( "so x = -1 +3sqrt(2) or x = -1 -3sqrt(2)\r<BR>\n" );
document.write( "\n" );
document.write( "aproaching to the nearest hundreth:\r<BR>\n" );
document.write( "\n" );
document.write( "x={3.24;-5.24}\r<BR>\n" );
document.write( "\n" );
document.write( "@natolino_ </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );