document.write( "Question 892356: The sum of first 40 terms of the series 2+10+30+66+130........is
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document.write( "A)583210
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document.write( "B)615340
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document.write( "c)648620
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document.write( "d)673220 \n" );
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Algebra.Com's Answer #540477 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! What's the pattern to the terms of the series? Do you know?\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |