Question

resolva as equaçoes exponenciais a) 4^x = 32

b ) 9^x^+^1 = 1 / 27​

Answer 1

Resposta:

a) 4^x = 32   ==> (2²)^(x) =2^(5) ==> (2)^(2x) =2^(5)

2x=5 ==>x=5/2

b) 9^(x+1) =1/27

(3²)^(x+1) =1/3³

3^(2x+1)=3⁻³

2x+1=-3

2x=-2

x=-1