Question

Tìm x: |x|=\(^{\dfrac{3}{8}}\). 

chi tiết nha mn. tks!!

Answer 1

\(\left|x\right|=\dfrac{3}{8}\\ \Rightarrow\left[{}\begin{matrix}x=-\dfrac{3}{8}\\x=\dfrac{3}{8}\end{matrix}\right.\)

Answer 2

\(x\in\left\{\dfrac{3}{8};-\dfrac{3}{8}\right\}\)

Answer 3

|x|=\(\dfrac{3}{8}\)

\(\Rightarrow\left[{}\begin{matrix}x=\dfrac{3}{8}\\x=\dfrac{-3}{8}\end{matrix}\right.\)

Vậy x∈{\(\dfrac{3}{8}\);\(\dfrac{-3}{8}\)}

Answer 4

\(\left|x\right|=\dfrac{3}{8}\)

\(\Rightarrow\left[{}\begin{matrix}x=-\dfrac{3}{8}\\x=\dfrac{3}{8}\end{matrix}\right.\)

Answer 5

\(\left|x\right|=\dfrac{3}{8}\)

\(\Rightarrow x\in\left\{\dfrac{3}{8};\left(\dfrac{-3}{8}\right)\right\}\)