2. (-2x⁴ y³)³

2) $$(-2x^4 y^3)^3 = (-2)^3 \cdot (x^4)^3 \cdot (y^3)^3 = -8 x^{4 \cdot 3} y^{3 \cdot 3} = -8 x^{12} y^9$$

Ответ: $$-8 x^{12} y^9$$