help with matlab code

Objectives: Given a scientific problem, determine the eigenvalues in the system, the physical meaning of the eigenvalues, and solve for them using Matlab commands. Consider a mass spring system as shown. The frequency of the mass vibrations may be determined by solving for the eigenvalues and by applying Mkx 0, where x is the displacement of each mass. Im Writing this as a system of differential equations gives the following matrix set. To solve, we assume that the solution takes the form x xoeiest, and adjust the matrix equations. 2km Ton To solve for the frequency, determine (named "Omega") using the built in eigs0 function in Matlab. Let Plot the real part of three modes of the solution as x (named "x") using the "1i" command against time from 0 to 100 with 2000 elements. Use subplot to put all three graphs in one figure