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Simple but Unfamilliar Algebra

  1. Aug 17, 2007 #1
    This really isnt a homework question, but I figured its the best place for it.

    I have no idea what this means. It was posted on another forum I frequent. The poster said he is an accounting professor, and a student brought this up from another class. The problem is as follows:

    I think the X in the box just stands for f(x), and the two boxes stands for f(f(2)). But this is just an assumption.

    Thanks alot,

  2. jcsd
  3. Aug 17, 2007 #2


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    Tanky322, you seem to be correct. The "box of x" must be "function of x". Use "2" and find the value of the function; then take this value and use it again as the value to use for x. The result is then f(f(2)).
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