Chủ đề:
Chương II : Hàm số và đồ thịCâu hỏi:
\(\left|x-0,5\right|\)=\(\dfrac{7}{2}\)
\(x:\dfrac{3}{8}+\dfrac{5}{8}=x\)
\(\dfrac{5}{6}-\left|x-\dfrac{1}{2}\right|\)=\(\dfrac{15}{18}\)
\(\dfrac{-7}{12}\)-\(\dfrac{2}{3}\):x=\(\dfrac{-5}{8}\)
\(\left(5x-3\right)^2-\dfrac{1}{64}=0\)
9.27\(\le\)\(3^x\) \(\le\)243
\((x-\dfrac{1}{2})^3\) =8
\(\dfrac{x-3}{5-x}=\dfrac{5}{7}\)