What is the value of x when 32² = 2^x?

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• A 10
• B 32
• C 16
• D 5

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Answer: A. 10

Write 32 as a power of 2: 32 = 2^5. Then 32^2 = (2^5)^2 = 2^(5 x 2) = 2^10 = 1024, so x = 10.

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