Factorise x2−13x+42x^2 - 13x + 42x2−13x+42
Expand and simplify (x+4)(x−4)(x + 4)(x - 4)(x+4)(x−4)
255 exam-style questions on OCR GCSE Maths Expanding and Factorising Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.