Which expression is equivalent to open paren 2 raised to the 1 half power times 2 raised to the 3 fourths power close paren squared ?

When multiplying powers with the same base, add the exponents: 2^(1/2) × 2^(3/4) = 2^(5/4). Squaring doubles the exponent, so (2^(5/4))^2 = 2^(5/2), which is the square root of 2^5. Therefore, the equivalent expression is choice D.

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