Function driver and script file please

4) The polynomial f (x)-0.0074x*-0.284x3+ 3.355x2 12.183x +5 has a real root between 15 and 20. Apply the Newton-Raphson method to this function using an initial guess of xo-16.15. Explain your results. 5) Use the roots MATLAB function to find the roots of the polynomial x x-1-0. Compare your answer to the answer you derived in in question 1. 6) Write the following set of equations below in matrix form. Use MATLAB to solve for the unknowns In addition, use it to compute the transpose and the inverse of the coefficient matrix 50-5x3 -6x2 2x2 +7x3 +30-0 X1-7x3 50-3x2 +5x Randomly generate a system of 5 linear equations and solve them using the four methods we discussed in class (i.e. with the inv function in MATLAB, the backslash operator in MATLAB NaiveGauss and with Pivot). Compare your results. 7)