Question

preciso de ajuda urgente​

Answer 1

Explicação passo-a-passo:

a) 7^-3 = 1/7.1/7/1.7 = 1/343

b)10-4 = (1/10)^-4

c)11^0 = 1

d) (√13)^0 = 1

2)a)7^1/2.1/3 = 7^1/6

b)2^(1/2 + 1/4 + 1/3) = 2^13/12

c)3^1/2.5^1/4

d)√7/3

3)10^(3x - 7) = 10^2

3x - 7 = 2

3x = 9

x = 3

b)3^(x + 2) = 243

3^(x + 2) = 3^5

x + 2 = 5

x = 3

entendeu ?