Question 176247
(8r)^1/3 * (2r^1/2)

((2^3)(r))^(1/3) *  (2r)^1/2

(2^1((r) *  (2r)^1/2

(2r)^1  *  (2r)^1/2

(2r)^1+1/2

(2r)^1 1/2
or
(2r)^3/2