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HKIMO 2026 Grade 9 National Preliminary Set 05 Question 8

HKIMO · HKIMO 2026 Grade 9 National Preliminary Set 05

Question 8

Simplify $\sqrt{28-16\sqrt 3}$.
  1. $4\sqrt3-2$
  2. $4-2\sqrt3$
  3. $2\sqrt3-4$
  4. $2-4\sqrt3$