Simplifying integral question....

[flyingfishcattle]

Homework Statement

I have solve the integral for:

to be:

But I cannot figure out how to simplify the answer to the form shown above.

Homework Equations

The Attempt at a Solution

Here is my progress so far:

Any help would be appreciated

 

[Doc Al]

You've done the hard part; just simplify (bx + a) - 3a