AQA
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Topic: Equations and Inequalities (Foundation - Unit 2)

Specification References: N5.9

N5.9 Use algebra to support and construct arguments.


Candidates should be able to:

  • use algebraic expressions to support an argument or verify a statement

Examples

  1. w is an even number. Explain why (w - 1)(w+1) will always be odd.

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  1. Liz says that when m > 1, m3 + 2 is never a multiple of 3.
    Give an example to show that she is wrong.

  2. Alice says that the sum of three consecutive numbers will always be even.
    Explain why she is wrong.