Resposta:
A) [tex]x=\frac{3}{5}[/tex]
B) [tex]x=\frac{3}{4}[/tex]
C) [tex]x= \frac{4}{6}[/tex]
D)[tex]x=\frac{2}{3}[/tex]
Explicação passo a passo:
A) [tex]32 ^x = 8\\(2^5)^x = 2^3\\5x = 3\\x=\frac{3}{5}[/tex]
B) [tex]81^x=27\\(3^4)^x=3^3\\4x=3\\x=\frac{3}{4}[/tex]
C) [tex]64^x=16\\(2^6)^x=2^4\\6x=4\\x=\frac{4}{6}[/tex]
D)[tex]343^x = 49\\(7^3)^x=7^2\\3x=2\\x=\frac{2}{3}[/tex]
