Question

giúp mk nha 

Answer 1

a: \(\Leftrightarrow\left|2x+3\right|=5\)

\(\Leftrightarrow\left[{}\begin{matrix}2x+3=5\\2x+3=-5\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=1\\x=-4\end{matrix}\right.\)