91¶¶Òõ

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91¶¶Òõ

Last updated

7 July 2026

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Five graded worksheets on the quadratic formula for GCSE Higher, with full mark schemes. From substitution and surd-form answers through to the discriminant.

How the series builds:

  • The formula: substitute and evaluate
  • Surd-form (exact) answers
  • Decimal answers (2 d.p. / 3 s.f.), including rearrangement
  • The discriminant: number and nature of roots
  • Conditions on k: equal roots, no real roots, distinct roots, tangency to the x-axis

Board-agnostic (AQA, Edexcel, OCR). Every question worked in the mark scheme. Print-and-go for lessons, homework, starters and revision.

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