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Question

Let r be the result of doubling both the base and exponent of a^b, and b does not equal to 0. If r equals the product of a^b by x^b, then x equals:

Accepted Answer

From the problem, r = (2a)^2b, so (2a)^2b = a^b x^b (4a^2)^b = (ax)^b 4a^2 = ax x = 4a Thus, the answer is 4a.