Mathematics A-Level
Repeated root
What Repeated root means in Mathematics A-Level, as defined for AQA.
Definition of Repeated root
Check what you remember
Read the wording for your board, then hide it and explain Repeated root in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A real root occurring twice, produced when the discriminant is zero; the quadratic graph touches the x-axis at that root.
Topics that use Repeated root
- B: Algebra and functions (AQA A-Level)
Related terms
- Asymptote
- Asymptotes
- Completing the square
- Composite function
- Conjugate
- critical values
- direct proportion
- Discriminant
Using Repeated 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
All Mathematics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge