Question

Resolva as expressões;

A) (-5)^2 • (-5)^4 / [(-5)^2]^6

B)(10^-2)^-3 • 10^-4 / 10^-5 • 10^-3


" ^ '' expoente

Answer 1

Olá!


A) (-5)^2 • (-5)^4 / [(-5)^2]^6

=> (-5)^2+4/(-5)^2×6

=> (-5)^6/(-5)^12

=> (-5)^6-12

=> (-5)^-6

=> 1/(-5)^6


B)(10^-2)^-3 • 10^-4 / 10^-5 • 10^-3

=> 10^(-2)×(-3) • 10^-4/10^-5-3

=> 10^6 • 10^-4/10^-8

=> 10^6-4/10^-8

=> 10^2/10^-8

=> 10^2-(-8)

=> 10^2+8

=> 10^10

Espero ter ajudado!