Find a function f and a number "a" such that

2 + int_(x at top, a at bottom) f(t)/t^3 dt = 6x^-3

?? I've been learning the fundamental theorem of calculus but I've just been staring at this question. I really don't know where to begin. I didn't think the lower limit, a, should come into play with the FTC... I don't know.

Please help. Thanks!!