Question

nth root of 64 minus the nth root of (27)=1, that is the value of 4^n?

256

144

64

54

4

Answer 1

Well, I'm not sure if this is the way you're supposed to solve it, but just by looking at it, I know that 64 and 27 are both equal powers of a certain number...by thinking a bit you'll be able to find what n is.

Answer 2

Try finding the prime factorization of 64 and 27, that might help you see what type of power they both are.

Answer 3

If you're having trouble with that, think about it. What numbers multiplied together make 64? Which make 27?