document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=78128>Question 78128</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evaluate, if possible. &#8730;-121<BR>\n" );
document.write( "THis is my radical symbol &#8730;<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #56030 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=56030\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since we have a negative number in the radicand (we can't take a square root of a negative number) we have to factor out a negative 1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-1%2A121%29 ALIGN=MIDDLE  ALT=\"sqrt%28-1%2A121%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=sqrt%28-1%29%2Asqrt%28121%29 ALIGN=MIDDLE  ALT=\"sqrt%28-1%29%2Asqrt%28121%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Break up the square roots\r<BR>\n" );
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document.write( "Since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=i=sqrt%28-1%29 ALIGN=MIDDLE  ALT=\"i=sqrt%28-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and 121 is a perfect square we get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11i ALIGN=MIDDLE  ALT=\"11i\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So in other words <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-121%29=11i ALIGN=MIDDLE  ALT=\"sqrt%28-121%29=11i\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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