document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170893>Question 170893</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you please help show me how to solve this quadratic equation by completing the square.\r<BR>\n" );
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document.write( "a^2 - 4a + 5 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #126169 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=126169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve this quadratic equation by completing the square. <BR>\n" );
document.write( "a^2 - 4a + 5 = 0<BR>\n" );
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document.write( "a^2 - 4a + ? = -5 + ?\r<BR>\n" );
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document.write( "a^2 -4a + (-4/2)^2 = -5 + (-4/2)^2\r<BR>\n" );
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document.write( "a^2 - 4a + 4 = -5 + 4\r<BR>\n" );
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document.write( "a^2 - 4a + 4 = -1\r<BR>\n" );
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document.write( "(a-2)^2 = -1\r<BR>\n" );
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document.write( "a-2 = i or a-2 = -i\r<BR>\n" );
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document.write( "a = 2+i or a = 2-i<BR>\n" );
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document.write( "Comment: If you have not studied complex numbers the <BR>\n" );
document.write( "answer you would get would be \"no solution\".<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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