Factorise fully 12x2+31x+2012x^2 + 31x + 2012x2+31x+20, giving your answer in the form (ax+b)(cx+d)(ax+b)(cx+d)(ax+b)(cx+d)
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.