\"\"

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The expression is \"\".

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Simplify the expression.

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\"\"     (Factors)

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              \"\"                  (Divide out the common factors)

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\"\".

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Therefore, the simplified expression is \"\".

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\"\"

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Find excluded value for \"\".

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\"\"                                  (The denominator can not be zero)

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\"\"                   (Factor)

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\"\" and \"\"         (Zero product property)

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\"\" and \"\"                 (Simplify)

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The excluded values are \"\" or \"\".

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\"\"

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The simplified expression is \"\".

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The excluded values are \"\" or \"\".