document.write( "Question 888240: Sum the Series:
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Algebra.Com's Answer #537296 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
Sum the Series:
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document.write( "We will use the formulas: \"sum%28%28k%29%2Ck=1%2Cn%29=n%28n%2B1%29%2F2\" and \"sum%28%28k%5E2%29%2Ck=1%2Cn%29=n%28n%2B1%29%282n%2B1%29%2F6\"\r\n" );
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document.write( "1×2+2×3+3×4+4×5+...+2013×2014 = \"sum%28%28k%29%28k%2B1%29%2Ck=1%2C2013%29\" = \"sum%28%28k%5E2%2Bk%29%2Ck=1%2C2013%29\" = \"sum%28%28k%5E2%29%2Ck=1%2C2013%29%2Bsum%28%28k%29%2Ck=1%2C2013%29\" =\r\n" );
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document.write( "       \"2013%282013%2B1%29%282%2A2013%2B1%29%2F6%2B2013%282013%2B1%29%2F2\" = 2723058910\r\n" );
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document.write( "Edwin
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