a) [tex]10^{60}:(2*5)^{58} = 10^{60}:10^{58}=10^{2}\\[/tex]
b) [tex](7^{14}*5)^{2}:7^{26} = \frac{7^{28}*25 }{7^{26} } =7^{2}*25=49*25=1225[/tex]
c) [tex](7^{6})^{8}:49^{24} = 7^{48}:(7^{2})^{24}=7^{48}:7^{48} = 1[/tex]
d) [tex](3^{4})^9:(9^{6})^3=3^{36}: 9^{18} = 3^{36} : (3^{2})^18 = 3^{36}:3^{36} =1[/tex]
