Factorise 2x2+7x−42x^2 + 7x - 42x2+7x−4
Expand and simplify (x+10)(x−10)(x + 10)(x - 10)(x+10)(x−10)
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.