Answer:
4k^4
Explanation:
Just break it down step by step. The cube root of 64 is 4, since 4*4*4 = 64.
The cube root of k^12 is k^4, since k^4*k^4*k^4 = k^12 (since you add the exponent together when multiplying.
So, when you put this together, the cube root must be 4k^4.