document.write( "Question 348522: Evaluate the expression (9-9i)(6+4i) and write the result in the form a+ b i. \n" ); document.write( "
Algebra.Com's Answer #249162 by nyc_function(2741)\"\" \"About 
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(9-9i)(6+4i) =\r
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\n" ); document.write( "\n" ); document.write( "54 + 36i - 54i -36(i^2) =\r
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\n" ); document.write( "\n" ); document.write( "54 + 36i - 54i -36(-1) =\r
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\n" ); document.write( "\n" ); document.write( "54 + 36i - 54i + 36 =\r
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\n" ); document.write( "\n" ); document.write( "90 - 18i\r
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