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Indices in Algebra

  1. Apr 23, 2010 #1
    Simplify:

    x4yz3 / x3y3z

    My answer was:
    xy-2z2

    However, the correct answer appears to be:

    xz2 / y2

    I know that y-2 is the same as 1/y2 so would my answer still be marked as wrong in an exam?
     
  2. jcsd
  3. Apr 23, 2010 #2

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    Unless the problem specifically said "write with positive exponents only", it certainly should not be. Of course, I can't say if it would be or not!
     
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