#KhanhHuyen2006 - Xin câu trả lời hay nhất
`a) (2x = 3)^2 = -7`
`-> x = ∅` (Không có `x` tồn tại)
`b) 2 (2x - 3)^2 + (-2) = 16`
`-> 2 (2x - 3)^2 = 16 - (-2)`
`-> 2 (2x - 3)^2 = 18`
`-> (2x - 3)^2 = 18 : 2`
`-> (2x - 3)^2 = 9`
`->` \(\left[ \begin{array}{l}(2x - 3)^2 = 3^2\\(2x - 3)^2 = (-3)^2\end{array} \right.\)
`->` \(\left[ \begin{array}{l}2x - 3 = 3\\2x - 3 = -3\end{array} \right.\)
`->` \(\left[ \begin{array}{l}2x = 6\\2x = 0\end{array} \right.\)
`->` \(\left[ \begin{array}{l}x=3\\x=0\end{array} \right.\)
