can someone explain this process to me (4m^2n^3)^-3=1/64m^6n^9

Question

Q=(4m^2n^3)^-3 A=1/64m^6n^9 How do I get from question to answer I don't get it

Answer 1

use these formulas:

for a negative exponent: (x)^-n=1/(x)^n

(X^n)^m=X^mn

(4m^2n^3)^-3= 1/(4m^2n^3)^3= 1/(4^3m^6n^9)= 1/(64m^6n^9)