Simplifique aplicando as propriedades das potências.
a) 5². 5³. 5^{4}
b) (7 ^{2} )^{-1}
c) (18^{7} : (18)^{5}
a) 5². 5³. 5^{4}
b) (7 ^{2} )^{-1}
c) (18^{7} : (18)^{5}
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5²⁺³⁺⁴ =
5⁹ = 1.953.125
b) (7 ^{2} )^{-1} =
7²⁺¹ =
7³ = 343
c) (18^{7} : (18)^{5} =
18⁷⁻⁵ =
18² = 324