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Math Help - Need help on Algebra word problem

  1. #1
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    Need help on Algebra word problem

    Determine which of the following two numbers is larger, and explain your reasoning:

    a.1,000,000x(1+2+3+4+...+1,000,001)

    b.1,000,001x(1+2+3+4+...+1,000,000)





    I've tried multiplying the number (1,000,000) times the corresponding numbers (1,2,3,4) and did the same for 1,000,001. However, I'm not sure if I have done that right...
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  2. #2
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    Re: Need help on Algebra word problem

    It's much easier to evaluate the sums first using Arithmetic Series.
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