Posted by clj45 on Saturday, April 6, 2013 at 1:54pm.
How do I write the terms of the series and find the sum.
4 summation notaion sign (k+6)^2 where k=1 under the summation sign

Algebra  Reiny, Saturday, April 6, 2013 at 2:33pm
think of it as a function
f(k) = (k+6)^2 , and consecutive integers only are used for k starting with k = 1.
The results obtained are then added.
so I am assuming you have
(1+6)^2 + (2+6)^2 + (3+6)^2 + (4+6)^2
= 49 + 64 + 81 + 100
= ....
I am assuming the 4 was written above the sigma sign. It indicates the upper value of k
In this case, since there are only 4 terms, you would just add up the terms
If there had been a large number of terms, e.g. k = 46, you would use the sum of an arithmetic series to find the sum
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