\fFind the functions and their domains. (Enter the domains in interval notation.) f( x) =x+, g(x) = *+ 20 x + 2 (a) fog (F o g) (x) = 2x- + 44x + 404 (x + 2) (x+ 20) domain (-00, - 20) U (-20, - 2) U (-2,00) (b) gof x- + 20x + 1 (go f) (x) = (x + 1 )2 domain (-00, - 1) U (-1,00) X (c) for x* + 3x- +1 (Fo f)(x) = x(x- +1) domain (-00,0) U (0,00) (d) 909 21x + 60 (g o g) (x) = 3x + 24 domain (-00, - 8) U (-8,00)