SOLUTION: find sum of series a - (a d) (a 2d) - (a 3d) ----- (2n 1) terms

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Question 621647: find sum of series a - (a d) (a 2d) - (a 3d) ----- (2n 1) terms
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
a-a^3d^2-2a^3dn