But as I read the post again: We have F2xF2 but times a function F:(F4). So what you really have is (F2xF2) X f(F4). Where F is the variable, and you can substitute in any number for grins and giggles for F. Use your TI-83 /84, or borrow your kids or grandkids (for us fossils), plug and chug and bang, you got your answer.
Retired Math Teacher