document.write( "Question 1023165: The next number in the series 10, -5, 25, -35, 85, -155 is:
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Algebra.Com's Answer #638686 by robertb(5830)\"\" \"About 
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325.\r
\n" ); document.write( "\n" ); document.write( "The sequence is modeled by the equation \"a%5Bn%5D+=+10+-+5%281-%28-2%29%5E%28n-1%29%29\".\r
\n" ); document.write( "\n" ); document.write( "Plug in n = 7 into the equation to get \"a%5B7%5D+\"=325.
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