Question

 ( x + 1/2 ) mũ 2 = 1

Answer 1

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

Answer 2

`(x+1/2)^2=1`

`@TH1:(x+1/2)^2=1^2`

       `=>x+1/2=1`

       `=>x=1-1/2=1/2`

`@TH2:(x+1/2)^2=(-1)^2`

      `=>x+1/2=-1`

      `=>x=-1-1/2=-3/2`

Answer 3

`=> x + 1/2 = +-1`

`=> x + 1/2 = 1`

    `x + 1/2 = -1`

`=> x = 1/2`     

     `x = -3/2`.