Level 2 Certificate Mathematics · key term

Associative law

Definition

The rule that changing the grouping of addition or multiplication does not change the result: $(a+b)+c=a+(b+c)$ and .

Specification 2.1 · Paper 1, Paper 2

For three brackets, the associative law allows you to multiply any two first. Simplify their product, then multiply by the remaining bracket.
Revise: Basic Algebraic Processes

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c)

(ab)c=a(bc)

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