Skip to content
    Mathematics GCSE

    nth root

    What nth root means in Mathematics GCSE, as defined for Pearson Edexcel.

    Definition of nth root

    Check what you remember

    Read the wording for your board, then hide it and explain nth root in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: Pearson Edexcel

    A value which, when raised to the positive integer power n, gives the original number; for a non-negative input, an even-root symbol denotes the principal non-negative root.
    Pearson Edexcel · Number - Structure and calculation (study guide)

    Topics that use nth root

    Related terms

    Using nth root in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Mathematics questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Mathematics GCSE terms