document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=186786>Question 186786</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could someone help me with this one;\r<BR>\n" );
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document.write( "sqrt(-25)sqrt(-9)<BR>\n" );
document.write( "My answer was 15, but it got marked wrong on my test, but sqrt(-25)=-5 and sqrt(-9)=-3 and -5*-3=15 so I dont really understand why its wrong.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140006 by </B><A HREF=/tutors/aboutme.mpl?userid=D13E12><B>D13E12(2)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=D13E12><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=140006\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sqrt(-25)= 5i, where i is the sqrt(-1)<BR>\n" );
document.write( "sqrt(-9) = 3i , i= sqrt(-1)<BR>\n" );
document.write( "now sqrt(-25)sqrt(-9) = 5i*3i=15 (i)^2=15*-1=-15\r<BR>\n" );
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