Question

Please help ASAP!!!

What is the sum of this series?

Answer 1

45

Explanation:

Since this is only three terms

Find the three terms and add

j=1 3(1)^2+1 = 3+1 =4

j=2 3(2)^2+1 = 3(4)+1 =13

j=3 3(9)^2+1 = 27+1 =28

The sum is 4+13+28 =45