f(x)=x3+2x2+x+2f(x) = x^3 + 2x^2 + x + 2f(x)=x3+2x2+x+2
Show that the equation f(x)=0f(x) = 0f(x)=0 can be written in the form x=−(x+2x2+2)\displaystyle x = -\left(\frac{x+2}{x^2} + 2\right)x=−(x2x+2+2)
329 exam-style questions on Edexcel A Level Maths Numerical Methods, covering 10.1 Locating Roots, 10.2 Iteration, 10.3 The Newton-Raphson Method, and 10.4 Applications to Modelling. Each one has a worked solution and a mark scheme showing where the marks go.