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2008 AMC 10A Problem 24

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2008 AMC 10A Problem 24AMC 10 Step by Step
Name:                             Date: September 13, 2026
Modular Arithmetic · difficulty 4 of 5 · about 4 min · position P21-25

Let k=20082+22008k={2008}^{2}+{2}^{2008} . What is the units digit of k2+2kk^2+2^k ?

  1. A)

    00

  2. B)

    22

  3. C)

    44

  4. D)

    66

  5. E)

    88

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