Resposta:
10
Explicação passo-a-passo:
[tex](10^4)^7 = 10^{4*7} =10^{28}\\\\(10^8*10)^3=(10^9)^3 = 10^{9*3} = 10^{27}\\[/tex]
[tex]\frac{(10^4)^7}{(10^8*10)^3}=\frac{10^{28}}{10^{27}} = 10^{28-27} = 10^1 = 10[/tex]
