document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=550634>Question 550634</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to multiply (3+ 2i)(2-5i)7i        how do I do this? I have no clue where or how to begin.\r<BR>\n" );
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document.write( "thanks in advance! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #358919 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=358919\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> multiply (3+ 2i)(2-5i)7i<BR>\n" );
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document.write( "Do the binomials:<BR>\n" );
document.write( "(3+ 2i)(2-5i)<BR>\n" );
document.write( "Do it the same as any binomial multiply.<BR>\n" );
document.write( "(3+ 2i)(2-5i) = 3*(2-5i) + 2i*(2-5i)<BR>\n" );
document.write( "= 6-15i + 4i-10i^2<BR>\n" );
document.write( "i^2 = -1<BR>\n" );
document.write( "= 6-15i + 4i+10<BR>\n" );
document.write( "= 16 - 11i<BR>\n" );
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document.write( "Multiply by 7i<BR>\n" );
document.write( "7i*(16 - 11i) = 112i - 77i^2<BR>\n" );
document.write( "i^2 is still = -1<BR>\n" );
document.write( "= 112i + 77<BR>\n" );
document.write( "= 77 + 112i </SPAN>\n" );
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