Correct Answer: Option A

Explanation

x + 2\(\sqrt{x} - 8 = 0, Let \sqrt{x} = y\)

x = \(y^2\)

\(y^2 + 2y\) - 8 = 0

(y + 4)(x - 2) = 0

y = -4 or 2

x = 16 or 4

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