document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=202580>Question 202580</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Select any imaginary number (of the form \"a + bi\" where a and b are non-zero real numbers), and turn it into a real number by using addition, subtraction, multiplication, division or exponentiation?<BR>\n" );
document.write( "Did I do this correct:  2i = 2i * 2i = 2; (2i)^2 = 2i * 2i = 2 * 2 * i^2 = 4(-1) = -4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152776 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=152776\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The second equation is correct. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282i%29%5E2+=+2i+%2A+2i+=+2+%2A+2+%2A+i%5E2+=+4%28-1%29+=+-4 ALIGN=MIDDLE  ALT=\"%282i%29%5E2+=+2i+%2A+2i+=+2+%2A+2+%2A+i%5E2+=+4%28-1%29+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So for any number <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ai ALIGN=MIDDLE  ALT=\"ai\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28ai%29%5E2=-a%5E2 ALIGN=MIDDLE  ALT=\"%28ai%29%5E2=-a%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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