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4-5.

Copy and simplify the following expressions by combining like terms. Homework Help ✎

  1. Flip subtraction to addition.

    Combine like terms.

    Remember you cannot combine and .
    Also remember to put the terms in decreasing order of their exponents.

  1. See the hints in part (a).

  1. See the hints in part (a).

    Remember cannot be combined with or .

  1. See the hints in part (a) and part (c).