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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