VTMO 2026 - Grade 8 - Semifinal - SET 08 - Self-study Question 21

Question 21

Expand $(x/3-2)^3$.

1. $\frac{x^3}{27}-8$
2. $\frac{x^3}{27}-2x^2+4x-8$
3. $\frac{x^3}{27}-\frac{2x^2}{3}+2x-8$
4. $\frac{x^3}{27}-\frac{2x^2}{3}+4x-8$
5. $\frac{x^3}{27}-\frac{2x^2}{3}+4x-8$