1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Power rule question

  1. Sep 11, 2007 #1
    I just did a problem that made use of the power rule. Here is the final step:

    (1-2x)
    -------------
    -(x-x^2)^5/4

    =

    (2x-1)
    -------------
    -(x-x^2)^5/4


    Why did 1-2x become 2x-1 (2x-1 is the answer according to my book)??
     
  2. jcsd
  3. Sep 11, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Are you sure there's a minus sign in both denominators?
     
  4. Sep 11, 2007 #3
    yep i'm looking at the solution manual right now...
     
  5. Sep 11, 2007 #4

    Doc Al

    User Avatar

    Staff: Mentor

    Well, that can't be right. :wink: (I suspect a typo.)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Power rule question
  1. Power rule (Replies: 9)

  2. Power rule (Replies: 10)

Loading...