Factorise 3x2+16x+213x^2 + 16x + 213x2+16x+21
Hence solve 3x2+16x+21=03x^2 + 16x + 21=03x2+16x+21=0
223 exam-style questions on Eduqas GCSE Maths Factorising Harder Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.