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: Solving nonlinear systems.

  1. May 14, 2008 #1
    1. The problem statement, all variables and given/known data

    Solve the nonlinear system.


    2. Relevant equations


    3. The attempt at a solution

    ive tried subtracting 1 equation from the other...
    y=root of -16/3...
    im not even sure if that part is right, also, i dont know where to go after that.
  2. jcsd
  3. May 14, 2008 #2
    You've forgotten to subtract the RHS as well.
  4. May 14, 2008 #3
    huh? im confused? what is the RHS? i really am confused on where to start in general.
    Last edited: May 14, 2008
  5. May 14, 2008 #4
    When you subtracted one equation from the other, you subtracted the left-hand side (LHS) of your equations, but did not do the same for the right-hand side (RHS), which was 25-25 = 0.
  6. May 14, 2008 #5
  7. May 14, 2008 #6


    User Avatar
    Science Advisor
    Homework Helper

    You have -3y^2=(-9). That doesn't give you y^2=(-3), does it? I think I remember once dividing -9 by -3 and I didn't get -3.
  8. May 14, 2008 #7
    awesome. figured it out. thanks for all the help people :)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook