1. The problem statement, all variables and given/known data f(x)=x(x2-4)1/2 2. Relevant equations 3. The attempt at a solution so I started by, let, u=x u'=1 v=(x2-4)1/2 v'=1/2(x2-4)-1/2(2x) so using the product rule f'(x)= (x2-4)1/2+x(1/2(x2-4)-1/2(2x)) =(x2-4)1/2+x2(x2-4)-1/2 Now do I just differentiate the second term again Im not quiete understanding what needs to be done here??