Chapter 7 - Integration Techniques - 7.9 Introduction to Differential Equations - 7.9 Exercises - Page 590: 35

$${\text{Not separable}}$$

$$\eqalign{ & \frac{{dy}}{{dt}} = ty + 2 \cr & {\text{The differential cannot be written in the form }}\frac{{dy}}{{dt}} = p\left( t \right)q\left( t \right) \cr & {\text{Then }} \cr & {\text{the differential equation is not separable.}} \cr} $$