Complete x2+2xy+y2=(x+□)2x^2 + 2xy + y^2 = (x+\square)^2x2+2xy+y2=(x+□)2
Hence factorise x2+2xy+y2x^2 + 2xy + y^2x2+2xy+y2
223 exam-style questions on OCR GCSE Maths Factorising Harder Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.