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functi_0083 [6 marks]

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Details

Topic: Functions and graphs (Algebra and graphs)
Marks: 6
Tier: Extended
Style: Short answer
Calculator: Calculator-free
Status: Usable
Source: functionsngraphsclassified.pdf, page 15, 0580/2, (original Paper 2)
Import issues: None

Mark scheme not yet teacher-reviewed

Part	Answer	Mark	Guidance
(a)	3(2x − y)(2x + y)	2	B1 for 3(4x² − y²) or (6x − 3y)(2x + y) etc.
(b)(i)	x² − 6x + 9	2	B1 for three terms correct out of four in x² − 3x − 3x + 9
(b)(ii)	p = 3, q = 1	2	B1 for each

Used in papers

Paper 2 Non-calculator (Extended), question 32
Sample Paper 2 (Extended, non-calculator), question 29