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2011 AMC 12B Question 24

AMC12 · 2011 AMC 12B

Question 24

Let $P(z)=z^8+(4\sqrt{3}+6)z^4$ $-(4\sqrt{3}+7).$ What is the minimum perimeter among all the $8$-sided polygons in the complex plane whose vertices are precisely the zeros of $P(z)?$
  1. $4\sqrt{3}+4$
  2. $8\sqrt{2}$
  3. $3\sqrt{2}+3\sqrt{6}$
  4. $4\sqrt{2}+4\sqrt{3}$
  5. $4\sqrt{3}+6$