can you please change these to radical form without simplifying them?

Question

625^(3/4)

4x^(-1/2)

32y^(-2/5)

x^(1/3) - y^(1/3)

Answer 1

a. fourth root of 625 cubed
b. 1/(2sqrtx)
c. 1/(2fifthrty^2)
d. 1/cbrtx - 1/cbrty

Answer 2

wait i don't think that's right

Answer 3

d is not right
cubrtx -cubrty

I thought there was a - sign in exponent.

Answer 4

4x^-1/2
= 4√x^-1
Or
4/√x Ans