Préfecture (capital): Nevers[?]
Sous-préfectures: Château Chinon[?], Clamecy[?] and Cosne Cours sur Loire[?].
... not depend on x) to the expression to the left of "=", that will make it a perfect square trinomial of the form x2 + 2xy + y2. Since "2xy" in this case is (b/a)x, we must ...