$\"\"$

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The expression is $\"\"$ .

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$\"\"$ (Quotient property of square roots: $\"\"$ )

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$\"\"$ (Factorised form)

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$\"\"$ (Substitute: $\"\"$ and $\"\"$ )

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$\"\"$ (Product property of square roots: $\"\"$ )

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$\"\"$ (Substitute: $\"\"$ and $\"\"$ )

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$\"\"$ (Substitute: $\"\"$ )

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$\"\"$ (Product property of square roots: $\"\"$ )

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$\"\"$ .

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Therefore, the simplified expression is $\"\"$ . $\"\"$

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$\"\"$ .