Evaluate 41 39 quickly.

  1. 1,599
  2. 1,601
  3. 1,600
  4. 1,589
Answer

A) 1,599

41 39 = (40 + 1)(40 - 1) = 40^2 - 1^2 = 1600 - 1 = 1599. SLO M-09-A-21 · Application

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