$\"\"$

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The expression is $\"\"$

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$\"\"$

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Rewrite the expression using product property of square roots.

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For nonnegative real numbers a and b, $\"\"$

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$\"\"$ $\"\"$ $\"\"$ (Substitute the imaginary unit value $\"\"$ )

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$\"\"$

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$\"\"$

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$\"\"$ (Find the square root: $\"\"$ ) $\"\"$ $\"\"$ (Commutative property: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Substitute the imaginary unit value: $\"\"$ )

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$\"\"$ (multiply: $\"\"$ )

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$\"\"$

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$\"\"$ ( $\"\"$ )

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$\"\"$ (Find the square root: $\"\"$ )

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$\"\"$ (Multiply: $\"\"$ ) $\"\"$

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The simplified expression is $\"\"$ .