document.write( "Question 1024763: Sum of (1, 5 k(k+1)/2, 25 k(k+1)(k+2)/6, 125k(k+1)(k+2) (k+3)/24, ЕЕ ) \n" ); document.write( "

Algebra.Com's Answer #640227 by robertb(5830) $\"\"$ $\"About$

You can put this solution on YOUR website!
A term seems to be missing in your sum... \n" ); document.write( "

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