document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201696>Question 201696</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Why it is if you multiply two negative numbers the product is positive?<BR>\n" );
document.write( "please help me sir/madam as soon as possible,,thank you'', </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #151930 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=151930\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the product of any two negatives be given as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-a%29%2A%28-b%29 ALIGN=MIDDLE  ALT=\"%28-a%29%2A%28-b%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%2Aa+%2A+%28-1%29+%2Ab ALIGN=MIDDLE  ALT=\"%28-1%29%2Aa+%2A+%28-1%29+%2Ab\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%2A%28-1%29%2Aab ALIGN=MIDDLE  ALT=\"%28-1%29%2A%28-1%29%2Aab\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You 'know' the answer is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ab ALIGN=MIDDLE  ALT=\"ab\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So what you really are asking is \"Why is (-1) * (-1) = 1??? \r<BR>\n" );
document.write( "\n" );
document.write( "Let's 'prove it'<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0+=+0 ALIGN=MIDDLE  ALT=\"0+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%2A0+=+0 ALIGN=MIDDLE  ALT=\"%28-1%29%2A0+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%2A%281%2B%28-1%29%29=0 ALIGN=MIDDLE  ALT=\"%28-1%29%2A%281%2B%28-1%29%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%2A1+%2B+%28-1%29%2A%28-1%29+=+0 ALIGN=MIDDLE  ALT=\"%28-1%29%2A1+%2B+%28-1%29%2A%28-1%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1+%2B+%28-1%29%2A%28-1%29+=+0 ALIGN=MIDDLE  ALT=\"-1+%2B+%28-1%29%2A%28-1%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%2A%28-1%29+=+1 ALIGN=MIDDLE  ALT=\"%28-1%29%2A%28-1%29+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "So there you have it.<BR>\n" );
document.write( "Make sense?\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );