document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131705>Question 1131705</A>: <I><SPAN STYLE=\"word-break: break-all;\"> is there a solution for y=x^+2 x+7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #748360 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=748360\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y = x^2 +2x +7<BR>\n" );
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document.write( "a solution is<BR>\n" );
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document.write( "x^2 +2x +7 = 0<BR>\n" );
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document.write( "complete the square<BR>\n" );
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document.write( "x^2 +2x +1 = -7 +1<BR>\n" );
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document.write( "(x+1)^2 = -6<BR>\n" );
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document.write( "x+1 = square root(-6)<BR>\n" );
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document.write( "x = -1 +i*square root(6)<BR>\n" );
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document.write( "x = -1 -i*square root(6)<BR>\n" );
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document.write( "y = x^2 +2x +7 does not cross the x axis so it has no zeros, the solutions for x are complex<BR>\n" );
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document.write( "note that i = square root(-1)<BR>\n" );
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