If f(x) = x5 â€" 1, g(x) = 5x2, and h(x) = 2x, which expression is equivalent to [g o f o h](9)? 2(5(95 â€" 1)2) 2((5 · 92)5 â€" 1) 5((2 · 9)5 â€" 1)2 (5(2 · 9)2)5 â€" 1