a) $$x^8 : x^4 = x^{8-4} = x^4$$
б) $$a^{10} : a^9 = a^{10-9} = a^1 = a$$
в) $$c^6 : c = c^{6-1} = c^5$$
г) $$a^5 : a^5 = a^{5-5} = a^0 = 1$$
a) $$2^{14} : 2^8 = 2^{14-8} = 2^6 = 64$$
б) $$(0,1)^{20} : (0,1)^6 = (0,1)^{20-6} = (0,1)^{14}$$
в) $$(-0,5)^{16} : (-0,5)^8 = (-0,5)^{16-8} = (-0,5)^8 = (0,5)^8$$