Confused?s problem: If I understood your question correctly, and your question is y = (x^ (2x ) (x-1)^3)/(3+5x)^4, and you want to find the derivative of that function, the answer is: y? = [{(x-1) ^2. x^ (2x)} {5x-29-2(3+5x)(x-1).ln(x+1)}}] / [ (3+5x) ^ 5] It?s bit long though. Too lazy to show all the work.