Question

8º ano
1. Aplique as propriedades convenientes.
〖 (3^2 )〗^4

2^2∙2^3

5^8:5^7

(2/3)^(-3)

Answer 1

a) $(3^2)^4=3^{2\cdot4}=3^8$

b) $2^2\cdot2^3=2^{2+3}=2^5$

c) $5^8:5^7=5^{8-7}=5^1=5$

d)$(\frac{2}{3})^{-3}=(\frac{3}{2})^3$