a) $$(2m^3)^4 = 2^4 \cdot (m^3)^4 = 16m^{12}$$
б) $$(3a)^2 = 3^2 \cdot a^2 = 9a^2$$
в) $$(-0.6m^3n^2)^3 = (-0.6)^3 \cdot (m^3)^3 \cdot (n^2)^3 = -0.216m^9n^6$$
г) $$(-2xy^3)^2 = (-2)^2 \cdot x^2 \cdot (y^3)^2 = 4x^2y^6$$
Ответ: