A differential equation (or "DE") contains derivatives or differentials.
Our task is to solve the differential equation. This will involve integration at some point, and we'll (mostly) end up with an expression along the lines of "y = ..."
Recall from the Differential section in the Integration chapter, that a differential can be thought of as a derivative where \displaystyle\frac{{\left.{d}{y}\right.}}{{\left.{d}{x}\right.}}
dx
dy
is actually not written in fraction form .Step-by-step explanation: