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The quadratic formula and equilibrium problems

  1. Oct 15, 2007 #1
    can i always the quadratic forumula when i m doin these types of problems. my teacher said i can but sometimes theirs faster ways to do it
  2. jcsd
  3. Oct 19, 2007 #2


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    You can use any method that is valid, includig the quadratic equation when it applies.
  4. Oct 28, 2007 #3
    Taking approximation if available
  5. Oct 28, 2007 #4
    if you're equil constant is smaller than 10^-5 or if the percent error is like 5%, then it's ok

    i forget how to calculate % error but just stick to 10^-5 and leave X out of your calculations
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