Respuesta :

Answer:

D. 5(z/x)^10

Step-by-step explanation:

15/3 = 5

z^-5 gets moved to the top, and made positive z^5

x^-3 gets moved to the bottom, and made positive x^3

z^5 + z^5 = z^10

x^7 + x^3 = x^10

5(z/x)^10