That's the thing. There weren't actually parentheses, but I thought that was implied because you mentioned the Chain Rule with u = 2Q.
Fuark this. Fuark politics, fuark selfishness, fuark your ego.

We could always go with Particle Physics instead. Relating to your comment earlier, I hypothesize that OP is a bro-on composed of two up fuarks and one down fuark, giving him a charge of +1 and a spin of 1/2.
Oh! Yeah, you'd be right, then. And you're right about the one you just posted as well, but you copied it incorrectly; I wrote 2Q^2. BUT. You obviously know what you're doing, so I award full credit!
OR WAIT. Unless you read it like (2Q)^2, then yeah, 8Q is right! I need to remember to use parentheses to eliminate ambiguity.