i need more help

[kkiceman14]

i need help to figure out this:

without the use of a calculator, simplify: (-64)^-2/3

 

[stapel]

What does a negative exponent tell you to do? What does squaring do? What is "64" a power of? Which root is the one-third power?

(Hint: Simplify the cube-root of -64 first, and then apply the negative square.)

Eliz.

 

[kkiceman14]

how do i simplify the cube root first

 

[stapel]

Figure out what -64 is the cube of.

Eliz.