document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=93105>Question 93105</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Choose the one alternative that best completes the statement or answers the question. \r<BR>\n" );
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document.write( "Solve by completing the square. <BR>\n" );
document.write( "x^2 - 6x - 40 = 0 \r<BR>\n" );
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document.write( "a) 10, -4     b) -10, 4     c)(-36, -4     d) square root of -40, negative square root of -40 \r<BR>\n" );
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document.write( "I think the answer is d after I plugged in all the options, but I don't know how to prove it. When I try to use completing the square I get up to this point, 6 plus or minus the square root of 160 over 2 and I can't go any further. Thanks so much!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #67747 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=67747\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2 - 6x - 40+40 =40<BR>\n" );
document.write( "x^2-6x=40<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-6x%2B%286%2F2%29%5E2%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-6x%2B%286%2F2%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >}=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2840%2B%286%2F2%29%5E2%29 ALIGN=MIDDLE  ALT=\"%2840%2B%286%2F2%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-6x%2B%283%29%5E2%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-6x%2B%283%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2840%2B%283%29%5E2%29 ALIGN=MIDDLE  ALT=\"%2840%2B%283%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-6x%2B%283%29%5E2%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-6x%2B%283%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2840%2B%289%29%29 ALIGN=MIDDLE  ALT=\"%2840%2B%289%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%5E2-6x%2B%283%29%5E2%29 ALIGN=MIDDLE  ALT=\"%28x%5E2-6x%2B%283%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=49<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-3%29%28x-3%29%29 ALIGN=MIDDLE  ALT=\"%28x-3%29%28x-3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=49 [factor]<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-3%29%5E2%29 ALIGN=MIDDLE  ALT=\"%28x-3%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >= 49\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sqrt%28%28x-3%29%5E2%29%29%29 ALIGN=MIDDLE  ALT=\"%28sqrt%28%28x-3%29%5E2%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sqrt%28+49%29%29 ALIGN=MIDDLE  ALT=\"%28sqrt%28+49%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x-3=+-7<BR>\n" );
document.write( "x=3+-7<BR>\n" );
document.write( "x=3+7=10<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x=3-7=-4<BR>\n" );
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document.write( "Solution: (10 or -4)<BR>\n" );
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