\"\"

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The given expression is \"\".

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Add the polynomials vertically.

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\"\"       (Arrange like terms in columns and combine them)

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The sum of polynomials is \"\".\"\"

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\"\"

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\"\"  (Substitute \"\")

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\"\"      (Evaluate powers: \"\")

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\"\"               (Multiply: \"\")

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\"\"                       (Add: \"\")

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\"\"                             (Subtract: \"\")\"\"

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The value of sum is \"\".