AQA All About Maths
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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
w
is an even number. Explain why
(
w
- 1)(
w
+1)
will always be odd.
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Liz says that when
m
> 1,
m
3
+ 2
is never a multiple of
3
.
Give an example to show that she is wrong.
Alice says that the sum of three consecutive numbers will always be even.
Explain why she is wrong.