Simplify
x3+3x2−6x−8(x−2)(x+4)2\displaystyle \frac{x^3+3x^2-6x-8}{(x-2)(x+4)^2}(x−2)(x+4)2x3+3x2−6x−8,
stating the values of x x\,x for which the original expression is undefined.
216 exam-style questions on WJEC A Level Maths 3.2 Algebra and Functions (A-level only), covering 3.2.1 Algebra and Functions (A-level only), 3.2.2 Algebra and Functions (A-level only), 3.2.3 Algebra and Functions (A-level only), 3.2.4 Algebra and Functions (A-level only), 3.2.5 Algebra and Functions (A-level only), 3.2.6 Algebra and Functions (A-level only), and 3.2 Algebra and Functions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.