document.write( "Question 1049687: Expand the following sums:\r
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Algebra.Com's Answer #665417 by ikleyn(52794) $\"\"$ $\"About$

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\n" ); document.write( "Expand the following sums:\r
\n" ); document.write( "\n" ); document.write( "c) the summation from 2 to 5 of (-1)^i(x^(i-1))
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document.write( "1-st term:  i=2:    =  = 1*x = x.\r\n" );
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document.write( "2-nd term:  i=3:    =  =  = .\r\n" );
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document.write( "3-rd term:  i=4:    =  =  = .\r\n" );
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document.write( "4-th term:  i=5:    =  =  = .\r\n" );
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document.write( "Finally, the sum of these four terms is  .\r\n" );
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