Problem: Let
\[
f(x) = x^4 + 2x^3 - 11x^2 - 12x + 36,~ \text{for } x\in \mathbb{R} .
\]
Then find the order of convergence of the Newton-Raphson method
\[
x_{n+1} = x_n - \frac{f\left( x_n \right) }{f^\prime \left( x_n \right) },~ n \geq 0
\]
with $x_0 = 2.1$, for finding the root $\alpha =2$ of the equation $f(x) = 0$.
Solution: I encourage you to attempt to solve the problem today. The solution will be provided tomorrow. This will give you the opportunity to test your understanding of the problem and to improve your skills in solving similar problems in the future.