Simplify 2x2+5x−3x2−9\dfrac{2x^2 + 5x - 3}{x^2 - 9}x2−92x2+5x−3.
State the values of x x\,x for which the original expression is not defined.
113 exam-style questions on AQA A Level Maths 1.5.6 Polynomials and rational expressions. Each one has a worked solution and a mark scheme showing where the marks go.