document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389454>Question 389454</A>: <I><SPAN STYLE=\"word-break: break-all;\"> simplify.<BR>\n" );
document.write( "(1-2i)^2 - (2-3i)^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #275978 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=275978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281+-+2i%29%5E2+-+%282+-+3i%29%5E2 ALIGN=MIDDLE  ALT=\"%281+-+2i%29%5E2+-+%282+-+3i%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Note that complex numbers still follow the same rules of arithmetic as real numbers do. We use the difference of two squares:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281+-+2i%29%5E2+-+%282+-+3i%29%5E2+=+%283+-+5i%29%28-1+%2B+i%29+=+-3+%2B+3i+%2B+5i+%2B+5+=+2+%2B+8i ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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