(3x-4)^2=(-3/4)^2 giúp mik vs , cảm ơn

`(3x-4)^2=(-3/4)^2`

`<=>` $\left[\begin{matrix} 3x-4=\frac{3}{4}\\ 3x-4=\frac{-3}{4}\end{matrix}\right.$

`<=>` $\left[\begin{matrix} 3x=\frac{19}{4}\\ 3x=\frac{13}{4}\end{matrix}\right.$

`<=>` $\left[\begin{matrix} x=\frac{19}{12}\\ x=\frac{13}{12}\end{matrix}\right.$

` Vậy ` $\left[\begin{matrix} x=\frac{19}{12}\\ x=\frac{13}{12}\end{matrix}\right.$