Factorise a2+2a−3a^2 + 2a - 3a2+2a−3
Solve a2+2a−3=0a^2 + 2a - 3 = 0a2+2a−3=0
203 exam-style questions on OCR GCSE Maths Solving Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.