Giải phương trình sau : (1/2 - x)^2 - 3 = 0

* Hướng dẫn giải

$\begin{array}{l}{\left(\frac{1}{2}-x\right)}^2-3=0\\ \iff {\left(\frac{1}{2}-x\right)}^2-{\left(\sqrt{3}\right)}^2=0\\ \iff \left(\frac{1}{2}-x-\sqrt{3}\right)\left(\frac{1}{2}-x+\sqrt{3}\right)=0\\ \iff \left[\begin{array}{l}\frac{1}{2}-x-\sqrt{3}=0\\ \frac{1}{2}-x+\sqrt{3}=0\end{array}\right.\iff \left[\begin{array}{l}x=\frac{1}{2}-\sqrt{3}\\ x=\frac{1}{2}+\sqrt{3}\end{array}\right.\end{array}$