a) [tex]\frac{8^6}{2} = \frac{(2^3)^6}{2} = 2^{18} : 2^1 = 2^{17} \\[/tex]
b) [tex]\frac{16^3}{4} = (2^4)^3:2^2=2^{12}:2^2=2^{10}[/tex]
c) [tex]\frac{9^7}{3} = \frac{(3^2)^7}{3} = 3^{14}:3^1=3^{13}[/tex]
d) [tex]\frac{100^4}{10} = \frac{(10^2)^4}{10} = 10^8:10^1=10^7[/tex]
