a) 2³$$\cdot$$ (-2)⁴ = 8 $$\cdot$$ 16 = 128
б) $$\frac{(-0.5)^{10}}{(-0.5)^{7}}$$ = (-0.5)$$^{10-7}$$ = (-0.5)³ = -0,125 = -$$\frac{1}{8}$$
в) (0,2$$\cdot$$5$$\cdot$$3)⁵ = (1$$\cdot$$3)⁵ = 3⁵ = 243
г) $$((\frac{-2}{3})^2)^2$$ = $$(\frac{4}{9})^2$$ = $$\frac{16}{81}$$