document.write( "Question 529794: Simplify (12+5i) - (9-2i). \n" ); document.write( "
Algebra.Com's Answer #349721 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"%2812%2B5i%29-%289-2i%29\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"12%2B5i-9%2B2i\" Distribute the negative.\r
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\n" ); document.write( "\n" ); document.write( "\"%2812-9%29%2B%285i%2B2i%29\" Group like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"3%2B7i\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "So \"%2812%2B5i%29-%289-2i%29=3%2B7i\"\r
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\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Jim\r
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