index notation
What index notation means in Mathematics GCSE, as defined for AQA, Pearson Edexcel.
Definitions of index notation
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Reference: AQA
Recording repeated multiplication so that a² means a × a, a³ means a × a × a and a²b means a × a × b.
Repeated multiplication collapses into an index, so a × a is written a² and a × a × b is written a²b.
Topics that use index notation
- Notation, vocabulary and manipulation (AQA GCSE)
- Algebra - Notation, vocabulary and manipulation (Pearson Edexcel GCSE)
Related terms
- algebraic equivalence
- algebraic notation
- composite functions
- difference of two squares
- equation
- expanding brackets
- Expression
- factorising quadratics
Using index notation in the exam
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