$\"\"$

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The expression is $\"\"$ .

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Determine the value of y make the denominator equal to 0.

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$\"\"$

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$\"\"$ (Rewrite: $\"\"$ )

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$\"\"$ \ \

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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The right choice is D.