Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Differential Equation

  1. Jan 30, 2009 #1
    dy/dx=2+[tex]\sqrt{y-2x+3}[/tex]

    The only way we've been taught to solve differential equations so far is, separation of variables method, exact equation, bernoulli equation, homogeneous, and we're about to start special integrating factor.

    I can't seem to get the equation into any of the first forms listed. Which leads me to believe its a special integrating factor problem. Or am I incorrect in this assumption?
     
  2. jcsd
  3. Jan 30, 2009 #2
    I would say try substitution v = y-2x
     
  4. Jan 30, 2009 #3

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    Why don't you try a change of variable v=y-2*x+3 before resorting to extreme measures? It looks dead simple to me.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook