1) Escreva na forma de um so potencia: a) 2^3 cdot 2^3 cdot 2^2= e) (5^4 cdot 5^2)/(5^5)= b) (2^5 cdot 2^4)^3= d) (2^8: 2^9)^10=

a) $2^{3} \cdot 2^{3} \cdot 2^{2} = 2^{3+3+2} = 2^{8}$

b) $\left(2^{5} \cdot 2^{4}\right)^{3} = 2^{5+4} \cdot 3 = 2^{27}$

c) $\frac{5^{4} \cdot 5^{2}}{5^{5}} = 5^{4+2-5} = 5^{1} = 5$

d) $\left(2^{8}: 2^{9}\right)^{10} = 2^{8-9} \cdot 10 = 2^{-10} \cdot 10 = \frac{1}{2^{10}} \cdot 10 = \frac{10}{1024}$