Exercise 1 — Cambridge IGCSE 0580 Nov 2024 Paper 21 Q23
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IGCSE Algebra — Completing squares Practice Extended
2 Cambridge IGCSE 0580 questions on completing squares at the Extended tier — each with its full mark scheme.
How to approach completing squares — open the study guide
Completing the square (Extended)
Rewrite x² + bx + c in the form (x + p)² + q. Useful for finding the vertex of a parabola and solving quadratics that don't factorise.
Practice exercises
Exercise 2 — Cambridge IGCSE 0580 Mar 2024 Paper 22 Q24
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