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

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

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Answer 1 · 2017-01-03T22:37:30

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!

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

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