document.write( "Question 340228: 3(2i+3)(1+3i) \n" ); document.write( "
Algebra.Com's Answer #243760 by nyc_function(2741)\"\" \"About 
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3(2i+3)(1+3i) =\r
\n" ); document.write( "\n" ); document.write( "NOTE: i^2 = -1\r
\n" ); document.write( "\n" ); document.write( "(6i + 9)(3i + 1) =\r
\n" ); document.write( "\n" ); document.write( "18i^2 + 6i + 27i + 9 =\r
\n" ); document.write( "\n" ); document.write( "18(-1) + 33i + 9 =\r
\n" ); document.write( "\n" ); document.write( "-18 + 33i + 9 =\r
\n" ); document.write( "\n" ); document.write( "-9 + 33i\r
\n" ); document.write( "\n" ); document.write( "Did you follow?\r
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