Problem $2.(5$ points$)$ Consider the following differential equation

$y^{\text{'}\text{'}\text{'}}+3y^{\text{'}\text{'}\text{'}}+2y^{\text{'}\text{'}}+3y^{\text{'}}+2y=u^{\text{'}}-u$

a$.(2$ points$)$ Derive the transfer function of the system

b$.(3$ points$)$ Obtain the stability of the system