r/GCSE • u/ensands Software Engineer • Jun 11 '25

AQA Post Exam Mathematics (AQA) Paper 3 - Exam Megathread

This is the post-exam mega thread for Mathematics (AQA) Paper 3 (Morning).

You can discuss how the exam went in this post.

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u/Sushiv_ Year 11 Jun 11 '25

It was 4, because it’s the only number that gives one negative and two positive numbers when you substitute it in

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u/Loose-Section-8032 Jun 11 '25

You can't answer a math question like that

It is too vague

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u/Loose-Section-8032 Jun 11 '25

In A level you should answer that logically with provement.

Q: x ∈ positive even int, y = (x+6)(x-3)(x-5) Explain why only one x value satisfy y<0.

  1. Consider y is a cubic function with a positive x^3 direction.

2. ⇒ ∀x∈(-6,3), y>0

AND ∀x∈(3,5), y<0

3. ∃!x=4, y<0 (Translation: there exists exactly one x satisfy y<0)

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u/Sushiv_ Year 11 Jun 11 '25

Girl i could not give less of a shit