Question 24 of 108 in Unit 1

Algebra 1

2 marks · Normal

Write down the value of the expression when and .

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18 (±0)

Common mistakes: Using values for p and q the wrong way round; Adding instead of multiplying

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Marking points

M1 · 1 mark · M: Substitution of and into the expression

A1 · 1 mark · A: Correct final answer of 18

Worked solution

Substitute and into the expression:

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