Question

simplify: 64^-2/3

Answer 1

\[\large{64^{-2 \over 3}} \implies {64^{-1 \over 3}} \times {64^{-1 \over 3}} \]Does that help?

Answer 2

(4)^3=64

Answer 3

\[(4)^{3*(-2/3)}= 4^{-2}\] hope that helps you