MATLAB Question

4. Use the conv command to carry out the following multiplication of polynomials, (x+1.4)(x0.4)(x+0.6)(x1.4). Plot the product for 1.5x1.5 After you have finished all the plotting cmds, the use the savefig and print cmds Add the text Polynomial Maxima and Minima to the figure, with Fontsize 14 Use the polyder and roots cmds to find the maxima and minima of the given polynomial and then add a plot of the maxima and minima that matches the example output. Note: the order of the legend entries follows the same order as the plot cmds you use. Note: the 2 nd derivative can be used to determine if the root is a maxima or minima Hint: maxima have values at the 2nd derivative that are negative Hint: minima have values at the 2nd derivative that are positive