Question

tim x

1/8*16^x=2^x

Answer 1

1/8*16^x=2^x

1/8=2^x/16^x

(2/16)^x=1/8

(1/8)^x=1/8

suy ra x=1

Vậy x=1

Answer 2

\(\frac{1}{8}\cdot16^x=2^x\)

\(\Leftrightarrow\frac{1}{8}=\frac{2^x}{16^x}\)

\(\Leftrightarrow\left(\frac{2}{16}\right)^x=\frac{1}{8}\)

\(\Leftrightarrow\left(\frac{1}{8}\right)^x=\frac{1}{8}\)

Suy ra x=1