Question
Sat February 02, 2013 By: Pranshu Chadha
 

(x-y)dy/dx = x+2y

Expert Reply
Sat February 02, 2013
this is homogeneous diff equation
dy/dx=(x+2y)/(x-y)
        consider 
       y=vx
diff w.r.to x
dy/dx=v+xdv/dx
v+xdv/dx=(1+2v)/(1-v)
xdv/dx=(1+2v-v-2v^2)/(1-v)
now u can solve using variable seprable form.
alo form ?linear/quadratic dx
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