Formula:-
(i) if a differential equation is ,
then y(I.F) = ∫Q.(I.F)dx + c, where I.F = e∫Pdx
(ii) ∫dx = x + c
Here,
This is a linear differential equation, comparing it with
P = 2, Q = e3x
I.F = e∫Pdx
= e∫2dx
= e2x
multiplying both the sides by I.F
Integrating it with respect to x,
ye2x = ∫e5x dx + c