lispworks - Lisp Illegal argument in functor position -

hello can me out?

(defun f(x)     (list ((* 2 x) (* 3 x))) )  (f 1)

i this, illegal argument in functor position: (* 2 x) in ((* 2 x) (* 3 x)).

it should be:

(defun f (x)     (list (* 2 x) (* 3 x)))

you have set of parentheses around arguments list. when expression list, first thing supposed function call,

((* 2 x) (* 3 x))

is not valid expression because (* 2 x) not function.

GHI