Building a perfect square
Building a perfect square
Completing the square rewrites a quadratic into a form where the square is obvious. The aim is to write it as (x+a)2+b(x + a)^2 + b(x+a)2+b, which makes the structure much easier to read.
Building a perfect square
Building a perfect square
Completing the square rewrites a quadratic into a form where the square is obvious. The aim is to write it as (x+a)2+b(x + a)^2 + b(x+a)2+b, which makes the structure much easier to read.
Step-by-step lessons covering Edexcel IGCSE Maths Completing the Square for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.