A company's weekly profit PPP, in thousands of pounds, is modeled by the polynomial P(n)=5n3+kn2+8n−30P(n) = 5n^3 + kn^2 + 8n - 30P(n)=5n3+kn2+8n−30, where n n\,n is the number of units sold (in hundreds) and k k\,k is a constant. A financial analysis reveals that when P(n)P(n)P(n) is divided by (n−2)(n - 2)(n−2), the remainder is 2. Find the value of kkk.
532 exam-style questions on AQA A Level Maths 1.5 B: Algebra and functions, covering 1.5.1 Laws of indices, 1.5.2 Surds, 1.5.3 Quadratic functions, 1.5.4 Simultaneous equations, 1.5.5 Linear and quadratic inequalities, 1.5.6 Polynomials and rational expressions, 1.5.7 Graphs of functions and proportion, 1.5.8 Composite and inverse functions (A-level only), 1.5.9 Transformations of graphs, 1.5.10 Partial fractions (A-level only), and 1.5.11 Functions in modelling (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.