Question

Solve the differential equation :-

(y+3x^2)dy/dx=x

Answer 1

y=ux2
dy=x2du+2xudx

Answer 2

You sure? :/

So you too y as ux^2, eh?

Answer 3

actually u=y/x2 is a two variable function to solve the de

Answer 4

Hm, that's perfectly fine.. It's just, i don't get the answer :(

Answer 5

ok just put the new variable u instead y then you reach the answer.

Answer 6

(ux2+3x2)(x2du+2xudx)=xdx

Answer 7

(u+3)x4du+2(u+3)x3udx=xdx