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Thread: Finding two numbers from one (easy)

  1. #1
    Oct 2008

    Finding two numbers from one (easy)


    I have the following problem: I have a number I obtained through a formula using two numbers. My goal is to find the two original numbers having only the result of the formula.

    I have the formula and the following inequality:

    x = ((a+9)*(a-2))/2 + b

    a > b

    Is there some way to find a and b only having the value of x and knowing that inequality is always valid?

    ps: I know the max values for a and b

    Last edited by amitr; October 14th 2008 at 07:23 PM. Reason: Adding the ps
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