document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=529800>Question 529800</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Simplify (1+2i)(1-2i). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #349729 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=349729\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1+2i)(1-2i) =\r<BR>\n" );
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document.write( "1 x 1 = 1\r<BR>\n" );
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document.write( "1 x -2i = -2i\r<BR>\n" );
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document.write( "2i x 1 = 2i\r<BR>\n" );
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document.write( "2i x (-2i) = -4(i^2)\r<BR>\n" );
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document.write( "1 - 2i + 2i -4(i^2)\r<BR>\n" );
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document.write( "1 - 4(-1) =\r<BR>\n" );
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document.write( "1 + 4 = 5\r<BR>\n" );
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document.write( "The answer is 5. </SPAN>\n" );
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