Ok, so you split up into two intervals I did from 2x to 0 and 0 to 4x.
Then you reverse the 2x to 0 and the integral becomes negative.
Then, replace 2x and 4x with u and chain rule
answer: (-2(x)2-5/(2x)2+5)*2 + (4(x)2-5/(4x)2+5)*4
Is my work correct? I was marked wrong and it said we didnt have to simplify.