Câu hỏi của Thùy Linh

8)\(=>4x=-2=>x=-\dfrac{2}{4}=-\dfrac{1}{2}\)b)\(=>4x+4=-6=>4x=-10=>x=-\dfrac{10}{4}=-\dfrac{5}{2}\)10)\(=>\left(2x-1\right)^2=25=>\left[{}\begin{matrix}2x-1=5\\2x-1==-5\end{matrix}\right.\)\(=>\left[{}\begin{matrix}2x=6\\2x=-4\end{matrix}\right.=>\left[{}\begin{matrix}x=3\\x=-2\end{matrix}\right.\)Câu trả lời: 8)\(=>4x=-2=>x=-\dfrac{2}{4}=-\dfrac{1}{2}\)b)\(=>4x+4=-6=>4x=-10=>x=-\dfrac{10}{4}=-\dfrac{5}{2}\)10)\(=>\left(2x-1\right)^2=25=>\left[{}\begin{matrix}2x-1=5\\2x-1==-5\end{matrix}\right.\)\(=>\left[{}\begin{matrix}2x=6\\2x=-4\end{matrix}\right.=>\left[{}\begin{matrix}x=3\\x=-2\end{matrix}\right.\)