If det(x22x)=5\det \begin{pmatrix} x & 2 \\ 2 & x \end{pmatrix} = 5det(x22x)=5, what are the possible values of xxx?
x=3,−3x = 3, -3x=3,−3
x=9=3x = \sqrt{9} = 3x=9=3
x=1,−1x = 1, -1x=1,−1
x=5,−5x = 5, -5x=5,−5