(1)Factor and simplify.
(a) BCD2 + (1/3)BC2D + AC2D (b) 3z2 - 2z (c) x(x + 4) - 12(x + 4)(x - 3) (d) p2 - 7p + 12 (e) x2 + 2x - 35 (f) y2 + 14y + 49 (g) x2 - 25 (h) c3 - 27