Question 170086
2. A student writes down the following as part of her response: 

a ) 3^2 x 3^3 = 729
Correct answer:::: 9*27 = 243
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b) 3^-2 = -9.
Correct answer:::: 3^-2 = 1/3^2 = 1/9
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Cheers,
Stan H.
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Are her answers correct? If not, explain why you think her answers are incorrect. 

Include in your explanation what she did wrong, if any.