>>351
9^(1/6) = (3^2)^(1/6) = 3^(2/6) = 3^(1/3)
(-24)^(1/3)= (3*(-2)^3)^(1/3) = -2 (3^(1/3))
(1/9)^(1/3) = (3/(3^3))^(1/3) = (1/3) (3^(1/3))

(8/3) (3^(1/3)) -2 (3^(1/3)) + (1/3) (3^(1/3))
= {(8/3) -2 +(1/3)} (3^(1/3)) = 3^(1/3)