Question

Use the rules of exponents to evaluate and simplify the following expression. (x*y)^-3

Answer 1

When something is put to the negative power, this transformation happens:


`x^-y = (1)/(x^y)`

Now, apply this to your question;


`(xy)^-3 = (1)/((xy)^3)`

Simplify the expression:


`(1)/(x^3 y^3)`