Question

Tìm x

\(\left(\frac{2}{3}\right)^x=\frac{16}{81}\)

Answer 1

\(\left(\frac{2}{3}\right)^x=\frac{16}{81}\)

\(\left(\frac{2}{3}\right)^x=\left(\frac{2}{3}\right)^4\)

\(\Rightarrow x=4\)

Answer 2

\(\left(\frac{2}{3}\right)^x=\frac{16}{81}\)

\(\Leftrightarrow\left(\frac{2}{3}\right)^x=\left(\frac{2}{3}\right)^2\)

\(\Leftrightarrow x=2\)

k mình nha bạn

Answer 3

Mk làm sai rồi. Hi