(30 pts) (Problem 6.2) Determine the highest real root of f(x) = 2x3 11.7x2 + 17.7x 5 P leg tegar hasta laktoglogato c) Write a MATLAB program using the Newton-Raphson method to determine the root with Xo = 3. d) Write a MATLAB program using the secant method to determine the root with x.1 = 3 and Xo = 4. e) Compare the relative errors between these three methods at the third iteration (initial value is the zeroth iteration)