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    Mathematics GCSE

    order of composition

    What order of composition means in Mathematics GCSE, as defined for Pearson Edexcel.

    Definition of order of composition

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    Reference: Pearson Edexcel

    With f(x) = 3x − 4 and g(x) = x + 2, fg(x) = 3x + 2 while gf(x) = 3x − 2, so the order changes the answer.
    Pearson Edexcel · Algebra - Notation, vocabulary and manipulation (study guide)

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