document.write( "Question 1209629: Simplify (i + 1)(100) - (i - 1)(100). \n" ); document.write( "

Algebra.Com's Answer #849710 by ikleyn(52778) $\"\"$ $\"About$

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\n" ); document.write( "Simplify (i + 1)(100) - (i - 1)(100)
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document.write( "Open parentheses   (100i + 100) - (100i - 100).\r\n" );
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document.write( "Combine real parts separately and imaginary parts separately\r\n" );
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document.write( "                   (100i + 100) - (100i - 100) = (100 + 100) + (100i - 100i).\r\n" );
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document.write( "The sum of real parts is 200.  The sum of imaginary parts is 0: they cancel each other.\r\n" );
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document.write( "ANSWER.  After simplification, the value of the given expression is 200.\r\n" );
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