\"\"

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The expression is  \"\".

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\"\"                        (Original expression)

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\"\"      (Multiply and divide by the conjugate of \"\" is \"\")

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\"\" (Apply distributive property: \"\")

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Product of sum and difference property: \"\".

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\"\"

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\"\"                    (Evaluate powers: \"\" and\"\")

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\"\"                    (Subtract: \"\")

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\"\".

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

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\"\".