Question

resolva as equaçoes exponenciais: 
a) 2elevado a x⁺³=1oitavo

b) 5elevado a 3x+1=25
                         

Answer 1

a)
$2^{x+3}=\frac{1}{8} \\ \\ 2^{x+3}=2^{-3} \\ \\ x+3=-3 \\ \\ \boxed{x=-6}$

b)
$5^{3x+1}=25 \\ \\ 5^{3x+1}=5^2 \\ \\ 3x+1=2 \\ \\ 3x=1 \\ \\ \boxed{x=\frac{1}{3}}$

Answer 2

$5^{3x+1} = 5^{2}$
$3x+1 = 2 \\ x = 1/3$