Starting with x0=3x_0 = 3x0=3, use the iteration formula xn+1=4xn2+3\displaystyle x_{n+1} = \frac{4}{x_n^2} + 3xn+1=xn24+3 three times to find an estimate for the solution to x3−3x2=4x^3 - 3x^2 = 4x3−3x2=4.
124 exam-style questions on Eduqas GCSE Maths Iteration. Each one has a worked solution and a mark scheme showing where the marks go.