It's a standard solution but if you've got to show steps, you can do this. I've done this question and it's got a few steps so I'll explain instead of showing all steps. You can use substitution but not just one, it requires multiple substitution.

Substituting

and doing the sorting out will lead to...

Here, substituting

and doing the sorting out will lead to...

Now, just split into partial fraction and integrate. (You may require one more substitution when integrating a fraction).

Remember to substitute all variables (

)to get the final answer in terms of

. The answer will be