\"\"

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The expression is  \"\"

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\"\"                                    (Substitute \"\")

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\"\"                                (Evalute powers: \"\")

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\"\"                                (Divide: \"\")\"\"

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\"\"

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\"\"                                       (Cancel common terms)

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

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\"\"     

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The  value of expression is \"\"

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