find

(d/dx) ((2)S(x^2)) ((t^3) – 1) dt i.e. derivative of the intagral from 2 to xsquared of t cubed minus one in relation to t

then find F^II (second derivavtive of F)

I know capital F means something different than lower case f, but does it matter in this case? I think this problem is a lot easier than I think it is. Help please?