Use the rules of exponents to evaluate and simplify the following expression. Type all without negative exponents.

(ab) - 2 =

For this case we have the following expression:

(ab) ^ - 2

Rewriting the expression we have:

(ab) ^ - 2 = 1 / (ab) ^ 2

Then, for power properties we have:

1 / (ab) ^ 2 = 1 / (a ^ 2b ^ 2)

Answer:

The simplified expression is:

1 / (a ^ 2b ^ 2)