Question

Question #5d2f2

Answer 1

`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