Question #5d2f2

1 Answer
Apr 29, 2016

8x+1

Explanation:

It can be seen that each successive term is bigger than the previous one by x. This is the common difference . It can also be found by subtracting a term from the next one. 3x+1(2x+1) results in x.
This means that the number of a term is the same as the co-efficient of x. 1 is added each time. The 8th term will be 8x+1