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Which of the following expressions is equivalent.! thanks

Which of the following expressions is equivalent.! thanks-example-1
User Kyle
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B;  you don't even have to solve it, you can see that both of the (-3) have a different exponent. Because the base (-3) is the same, it cancels out, so you focus on the exponents. Then you're left with 2x9=18
User Pauly
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