Question

somente a 3 porfavor

Answer 1

Resposta:

16

Explicação passo-a-passo:

explicação na imagem

Answer 2

Utilizando as seguintes propriedades

• $(a^m)^n=a^{m\cdot n}$

• $a^m\cdot a^n=a^{m+n}$

• $\dfrac{a^m}{a^n}=\a^{m-n}$

Temos:

$\dfrac{(4^2)^3\cdot4^{-2}}{4^2}\\\\\dfrac{4^{2\cdot3}\cdot4^{-2}}{4^2}\\\\\dfrac{4^6\cdot4^{-2}}{4^2}\\\\\dfrac{4^{6-2}}{4^2}\\\\\dfrac{4^4}{4^2}\\\\4^{4-2}\\\\4^2\\\\\boxed{16}$