Simplify and evaluate?

Question

Simplify and evaluate:

(2^2x^5y^-3z^4/4^0x^-2y^-8z^5)^3

Answer 1

Is this correct?
You are asking to simplify;


(2 to the 2x power, to the 5y power, to the -3z power, to the 4th power)

all divided by

(4 to the zero times x power, to the -2y power, to the -8z power, to the 5th power).

Answer 2

Sorry, but you need more paretheses and some spacing. Otherwise, this is very ambiguous.