ABSTRACT
For example, ( ) 2y x e xx′ = + is the first-order ODE. To find the unknown function y(x) we use Leibnitz notation ( ) /y x dy dx′ = , write the equation as ( )2dy e x dxx= + , and then integrate both sides. This gives = + +( ) /33y x e x Cx , where C is an arbitrary integration constant.
