differential eq

an expression is said to be homogeneous if the degree of each of the terms is the same

2x-3y is a homo expre of degree 1

next

and so on...

 for  a homo diff eqn usually, the substitution y=vx   or x=vy will work depending on the question.

when the equation is of the type

dy/dx+Py =Q

where P and Q are constants or functions of x only...then find the I.F.= e raised to integral p dx.