please describe in detail

4. (20 pts) For the given steady state value of the input variable, calculate the steady state value of the output variable. Linearize the nonlinear differential equation around the steady state, and calculate the transfer function between the input and the output. Note: CA and X represent concentrations, and thus are positive. CA (a) (10 pts] = 5(CA - CA)-CA, CA(input) = 10, CA (output) = ? dt (b) (10 pts] dX dt 1 -DX + 25 X + 4 D(input) = 5, X (output) =