Question #5d2f2

1 Answer
Apr 29, 2016

Answer:

#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