Please help me learn to do this step by step. I need within a couple hours if possible.

x'(t) = Matrix [ 1 3 ] x(t) + [1]
'''''''''''''''''''''''''''''''[ 3 1 ]'''''''''''''''''[2]


a. Find the general solution using the method of undetermined coefficients

b. Find the general solution using the method variation of parameters

c. Find the general solution using that matrix [ 1 3 ] is diagonalizable
'''''''''''''''''''''''''''''''''''''''''''''''''' ''''''''''''''''''''''''''''''''''''''''''''''''''[ 3 1 ]

If you can only do one part at a time that's ok.