Resposta :
a) 7⁵x 7² = [tex]7^{7}[/tex]
b) (20⁴)²= [tex]20^{8}[/tex]
c) 7⁶ ÷7³= [tex]7^{3}[/tex]
d) (8⁹)³= [tex]8^{27}[/tex]
e) (0,4)⁵ ÷(0,4)= [tex](0,4)^{4}[/tex]
f) [ (1,5)⁵]⁴ = [tex]1,5^{20}[/tex]
g) (2,9)¹⁰ ÷(2,9)⁴ = [tex](2,9)^ {6}[/tex]
h) (3/7)⁵ ×(2/7)²× (2/7)² = [tex](3/7)^{5}[/tex] × [tex](2/7)^{4}[/tex]
i) (3/7)²⁵ + (3/7)⁹ = [tex](3/7 )^{34}[/tex]