Howard Hawks (May 30, 1896 - December 26, 1977) is one of the more critically acclaimed directors of the Classic Hollywood Era[?], though he is not generally well-known among the public. Hawkes directed films considered to be classics in a number of different genres.
... trinomial of the form x2 + 2xy + y2. Since "2xy" in this case is (b/a)x, we must have y = b/(2a), so we add the square of b/(2a) to both sides, ...