Its first commander was Rear Admiral Laurance T. DuBose[?], and later Rear Admiral Morton Deyo[?].
CruDiv 13 participated in a number of actions. (list them)
... (i.e., in this case, a quantity that does not depend on x) to the expression to the left of "=", that will make it a perfect square trinomial of the form x2 + 2xy + ...