Question

\(\left(5x-3\right)^2=\frac{4}{9}\)

Answer 1

\(\Rightarrow5x-3=\frac{2}{3}\)(tính bình thường)

(Is this a joke?)

Answer 2

\(\left(5x-3\right)^2=\frac{4}{9}\)

Từ đề bài ta có: \(\left(5x-3\right)=\frac{2}{3}\)

\(5x=\frac{2}{3}+3=\frac{11}{3}\)

\(x=\frac{11}{3}:5=\frac{11}{15}\)

\(\Rightarrow x=\frac{11}{15}=0,7\left(3\right)\)