Please solve the following problem in MATLAB

3.9. Use the augmented system method of Sec- tion 3.4.2 to solve the least squares problem de- rived in the previous exercise. The augmented system is symmetric but not positive definite, so Cholesky factorization is not applicable, but you can use a symmetric indefinite or LU factorization. Experiment with various values for the scaling pa- rameter a. How do the accuracy and execution time of this method compare with those of the normal equations and QR factorization methods? 3.9. Use the augmented system method of Sec- tion 3.4.2 to solve the least squares problem de- rived in the previous exercise. The augmented system is symmetric but not positive definite, so Cholesky factorization is not applicable, but you can use a symmetric indefinite or LU factorization. Experiment with various values for the scaling pa- rameter a. How do the accuracy and execution time of this method compare with those of the normal equations and QR factorization methods