document.write( "Question 315735: Perform the indicated operation -Imaginary numbers\r
\n" ); document.write( "\n" ); document.write( "1). (9-5i) + (4+7i)\r
\n" ); document.write( "\n" ); document.write( "2). (1+3i) - (2+ 8i)\r
\n" ); document.write( "\n" ); document.write( "3). (11i)(5i)\r
\n" ); document.write( "\n" ); document.write( "4). (12-5i)(2+3i)
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Algebra.Com's Answer #225915 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Only post one problem at a time please.\r
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\n" ); document.write( "\n" ); document.write( "1) \"%289-5i%29+%2B+%284%2B7i%29+=%289%2B4%29%2B%28-5i%2B7i%29=13%2B2i\"
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