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TIMO - 2021 - Grade 8 - Preliminary Round - Paper 1 Question 9

TIMO · TIMO - 2021 - Grade 8 - Preliminary Round - Paper 1

Question 9

Given $x^2+y^2+2x+1=0$, find $(x-y)^{2020}+(x+y)^{2021}$.
  1. 2
  2. 0
  3. 1
  4. -1