$\"\"$

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The expression is $\"\"$ $\"\"$ .

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Rewrite the expression $\"\"$ .

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Apply square of a difference formula: $\"\"$ .

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$\"\"$

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Evaluate powers: $\"\"$ .

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$\"\"$

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

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The simplified expression is $\"\"$ .

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