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Homework Help: Question about determining digits of a number

  1. Mar 8, 2006 #1
    The question is:
    If [tex]\sqrt{ABADEC} = BEB[/tex] what is the value of the digit "D"?

    I'm completely lost as to how to start on this one. I tried expanding the numbers as powers of ten:
    BEB = B*102 + E*101 + B*100
    = B(102 + 1) + 10E
    = 101B + 10E
    ...but I couldn't really do anything with it after that.

    I don't want an answer, just a hint on how to proceed.

    Thanks!
    -GM-
     
    Last edited: Mar 8, 2006
  2. jcsd
  3. Mar 8, 2006 #2

    shmoe

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    Science Advisor
    Homework Helper

    Try taking this expression and squaring it.
     
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