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Simplify This

Algebra Level 1

\[ \Large \sqrt{2^{\sqrt{{4} x^2}}} \]

Which of the following is equal to the above expression where \(x\ge 0?\)

\[2^{x}\] \[4^{2x}\] \[2^{2x}\] \[4^{x^2}\]

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by Zandra Vinegar

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