Solving differential equations

  • Thread starter wezzo62
  • Start date
  • #1
7
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Find the general solution to: dy/dx = 3x2y

I tried saying u = 3x2 and v = y
then du/dv = 6x and dv/dy = 1

and get 3x2 + 6xy but now i think iv gone completely the wrong way around this . . . .
 

Answers and Replies

  • #2
21
0
Try using separation of the variables.
 
  • #3
Disconnected
Gold Member
111
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Find the general solution to: dy/dx = 3x2y

I tried saying u = 3x2 and v = y
then du/dv = 6x and dv/dy = 1

and get 3x2 + 6xy but now i think iv gone completely the wrong way around this . . . .

You can swing the y over to the left hand side (LHS) of the equation, and the dx to the RHS.
This gives you two integrals. Do them, and see what happens.
 

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