document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=327900>Question 327900</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i am doing completing the square and i want to make sure i have it right\r<BR>\n" );
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document.write( "solve: x squared + 2x = 8 by completing the square </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #234817 by </B><A HREF=/tutors/aboutme.mpl?userid=meay7c><B>meay7c(10)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=meay7c><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=meay7c><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=234817\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The problem : x^2 + 2x = 8, can be solved by completing the square as follows:\r<BR>\n" );
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document.write( "x^2 + 2x = 8\r<BR>\n" );
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document.write( "Next we want to take 1/2 of the coefficient, 2 which is 1 and then square 1.\r<BR>\n" );
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document.write( "1 squared is 1, so we add 1 to both sides:\r<BR>\n" );
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document.write( "x^2 + 2x + 1 = 8 + 1\r<BR>\n" );
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document.write( "Next we simplify:\r<BR>\n" );
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document.write( "x^2 + 2x + 1 = 9\r<BR>\n" );
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document.write( "Remember: x^2 + 2x + 1 is equivalent to (x + 1)^2. If we were to FOIL out<BR>\n" );
document.write( "(x +1)^2 we would get: x^2 + 2x + 1.<BR>\n" );
document.write( "In order to solve this equation, we will use (x + 1)^2 on the left hand side.\r<BR>\n" );
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document.write( "(x + 1)^2 = 9\r<BR>\n" );
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document.write( "To solve for x, we must undo the squaring operation on the left hand side. We do this by taking the square root of both sides:\r<BR>\n" );
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document.write( "sqrt(x + 1) ^2 = + or - sqrt (9)\r<BR>\n" );
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document.write( "Yielding: x + 1 = + or - 3\r<BR>\n" );
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document.write( "Next we evaluate:\r<BR>\n" );
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document.write( "x + 1 = 3 and x + 1 = -3\r<BR>\n" );
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document.write( "The first equation x + 1 = 3, x is 2.\r<BR>\n" );
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document.write( "The second equation x + 1 = -3, x = -4\r<BR>\n" );
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