how to do this math problem?

Question

Simplify this expression. If the answer contains exponents, all exponents should be positive.

(8k^3)^-2

 

Answer 1

= 1/64k^6

8^2 = 64

8^-2 = 1/64

k^3)^2 = k^6

(k^3)^-2 = 1/k^6