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VTMO 2015 — Grade 8 — semifinal Question 4

VTMO · VTMO 2015 — Grade 8 — semifinal

Question 4

Expand $\left(\frac{x}{3} - 2\right)^{3}$.
  1. $\frac{x^{3}}{27} - 8$
  2. $\frac{x^{3}}{27} - 2 x^{2} + 4 x - 8$
  3. $\frac{x^{3}}{27} - \left(\frac{2}{3}\right) x^{2} + 2 x - 8$
  4. $\frac{x^{3}}{27} - \left(\frac{2}{3}\right) x^{2} + 4 x - 8$
  5. $\frac{x^{3}}{27} - \left(\frac{2}{3}\right) x^{2} + 4 x - 8$