Question

How do you simplify `9^2times3^-2`?

Answer 1

Figure out that `9^2` is equal to 81.

Since a negative exponent gives you the reciprocal of the number to the absolute value of the exponent (for example `5^-2` is equal to 1/25 or 0.04) use this to solve `3^-2`. This is equal to 1/9

Then, you can just multiply `81 times 1/9` which is 9.

Hope this helps!