What in the world is the "S"? I'm assuming you're trying to do an integral sign?

So you want to find the integral of (x^3 + 5*x - 8)/(9*x^5)dx

Do you agree we can expand the above to:

1/(9*x^2) + 5/(9*x^4) - 8/(9*x^5)

Then:

Take the integral of each of the terms.

Thus,

-1/(9*x) + [-5/(27*x^3)] + [2/(9*x^4)] + C, where C is some constant.