Factorise x2+7x+12x^2+7x+12x2+7x+12 and x2−5xx^2-5xx2−5x
Hence simplify fully 3x+9x−5÷x2+7x+12x2−5x\displaystyle \frac{3x+9}{x-5} \div \frac{x^2+7x+12}{x^2-5x}x−53x+9÷x2−5xx2+7x+12
255 exam-style questions on Edexcel GCSE Maths Algebraic Fractions. Each one has a worked solution and a mark scheme showing where the marks go.