Question

\(2\left|5x-1\right|=5\) 

giải giúp mình với ạ

 

Answer 1

=>|5x-1|=5/2

=>5x-1=5/2 hoặc 5x-1=-5/2

=>5x=7/2 hoặc 5x=-3/2

=>x=7/10 hoặc x=-3/10

Answer 2

\(=>\left|5x-1\right|=\dfrac{5}{2}\)

\(=>\left[{}\begin{matrix}5x-1=\dfrac{5}{2}\\5x-1=-\dfrac{5}{2}\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}5x=\dfrac{7}{2}\\5x=-\dfrac{3}{2}\end{matrix}\right.=>\left[{}\begin{matrix}x=\dfrac{7}{10}\\x=-\dfrac{3}{10}\end{matrix}\right.\)