document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=767282>Question 767282</A>: <I><SPAN STYLE=\"word-break: break-all;\"> explain with example how to change a positive sign while the two negative sign of products. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471191 by </B><A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><B>tommyt3rd(5050)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><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=tommyt3rd><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=471191\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Actually we are simplifying when we write a double negative as a positive. One way to see this is to recognize that one interpretation of the negative is to reverse a number's direction from 0 on the number line. If the number is negative, reversing its sign makes it positive.\r<BR>\n" );
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document.write( "Ex1:  -(-2)=(-1)(-1)(2)=2<BR>\n" );
document.write( "Ex2:  -(-(-2))=(-1)(-1)(-1)(2)=[(-1)(-1)](-1)(2)=(-1)(2)=-2 </SPAN>\n" );
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