You have to apply two rules here - the rule for taking the derivative of a product of functions, and the rule for taking the derivative of a composition of functions. What is the product, and what is the composition? What are the composition and product rules?
you see, that's the reason why I posted this thread. I'm somehow confused on what to use. Will I use the power rule or the product rule?? if i'm gonna use the power rule, i'll arrive on an answer like this: 2(1-x)*3(1+x)2