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SEAMO 2018 — Paper E — Grade 9–10 Question 3

SEAMO · SEAMO 2018 — Paper E — Grade 9–10

Question 3

Given $x^2-8x+1=0$, find $x^4+\frac1{x^4}$.
  1. $6$
  2. $8$
  3. $3838$
  4. $3842$
  5. None of the above