Question

a) (-7)^5/ (-7)^3
b) 3^2 x 3^5) : 3^8

Answer 1

Resposta:

a) $7^{2}$

b) $3^{-1}$

Explicação passo a passo:

a) $\frac{(-7)^{5}}{(-7)^{3}} = 7^{5-3} = 7^{2}$

b) $\frac{3^{2} .3^{5}}{3^{8}} = \frac{3^{2+5}}{3^{8}} = \frac{3^{7}}{3^{8}} = 3^{7-8} = 3^{-1}$