document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=162611>Question 162611</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (2+3i)^2 could you please explain step by step\r<BR>\n" );
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document.write( "please help soon! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #119826 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=119826\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (2+3i)^2 could you please explain step by step<BR>\n" );
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document.write( "Assume you want to FOIL (2+3i)(2+3i)<BR>\n" );
document.write( "Step by step<BR>\n" );
document.write( "F: mult first two term 2 * 2 = 4<BR>\n" );
document.write( "0: mult outer terms: 2 * 3i = 6i<BR>\n" );
document.write( "I: mult inner terms: 3i * 2 = 6i<BR>\n" );
document.write( "L: mult last terms: 3i * 3i = 9i^2<BR>\n" );
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document.write( "So we have:<BR>\n" );
document.write( "4 + 6i + 6i + 9i^2<BR>\n" );
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document.write( "Add like terms<BR>\n" );
document.write( "4 + 12i + 9i^2<BR>\n" );
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document.write( "Remember that i^2 = -1 so you have:<BR>\n" );
document.write( "4 + 12i + 9(-1)<BR>\n" );
document.write( "4 + 12i - 9<BR>\n" );
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document.write( "4 - 9 + 12i<BR>\n" );
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document.write( "which is:<BR>\n" );
document.write( "-5 + 12i   </SPAN>\n" );
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