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

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$\"\"$

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$\"\"$

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Apply zero product property :If $\"\"$

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$\"\"$

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$\"\"$ on the interval $\"\"$ .

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$\"\"$ on the interval $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ on the interval $\"\"$ .

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$\"\"$ on the interval $\"\"$ .

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Therefore $\"\"$ .