Please do the following Problem using MATLAB.

3. Consider the following function: f(x)x3- 2.1x2 1 A. Estimate the roots (zeros) of f(x) using a graphical method. Be sure to show your B. Find at least two different versions of the iterative function (e.g., g1 (x) and g2(x)) C. Use fixed-point iteration with your iterative functions to find as many roots/zeros of plot(s). Hint: There are 3 real roots between x1 and 2. suitable for use with fixed-point iteration. f(x) as you can. Are there any roots/zeros that fixed-point iteration cannot find with ur chosen iterative functions and starting points? D. Find the iterative function gN(x) that can be used to implement Newton's method: gn(x) = x-f(x) f(x)