I need help with my homework..?

Question

okay me and my bff are doing our homework and we both do not understand this question.. please help me..

heres the problem:

(2/xy) ^ -3

this is a fraction..

ten points for the best answer

Answer 1

Always remember that negative powers flip the fractions so 5^-2 = 1/(5)^2.

Similarly in your case.

(2/xy)^-3

= (2)^-3 / (xy)^-3

= (xy)^3 / (2)^3

=(x^3)(y^3)/8

Answer 2

2 over xy to the -3 power