Given the functions, f(x) = x - 8 and g(x) = x2 x - 1, perform the indicated operation. when applicable, state the domain restriction. (fg)(x) x3 - 9 x2 - 9 x 8 x3 - 9 x2 - 9 x - 8 x3 - 7 x2 - 9 x 8 x3 - 7 x2 - 9 x - 8