\(8^n:2^n=4\)
\(\Rightarrow\left(8:2\right)^n=4\)
\(\Rightarrow4^n=4\)
\(\Rightarrow n=1\)
Vậy n = 1
ĐKXĐ: n \(\in\) R
\(8^n:2^n=4\)
\(\Rightarrow\left(8:2\right)^n=4^1\)
\(\Leftrightarrow4^n=4^1\)
\(\Rightarrow n=1\)
Vậy \(n=1\)
Giải:
\(8^n:2^n=4\)
\(\Leftrightarrow\left(8:2\right)^n=4\)
\(\Leftrightarrow4^n=4\)
\(\Leftrightarrow n=1\)
Chúc bạn học tốt!