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IMAS 2018 Junior Round 1 Question 3

IMAS · IMAS 2018 Junior Round 1

Question 3

If $x=2$ and $y=3$, then what is the value of $x^4+y^4-x^3-y^3+x^2+y^2$?
  1. 71
  2. 72
  3. 75
  4. 83
  5. 85