Question

|2x+1|=|3x-2|

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Answer 1

\(\left|2x+1\right|=\left|3x-2\right|\)

\(\Leftrightarrow\)2x-1=3x-2 hoặc 2x-1=-3x+2

\(\Leftrightarrow\)x=1 hoặc x=\(\dfrac{3}{5}\)

Vậy x=\(\left\{1;\dfrac{3}{5}\right\}\)

Answer 2

|2x+1|=|3x-2|

\(\Leftrightarrow\left[{}\begin{matrix}2x+1=3x-2\\2x+1=-3x+2\end{matrix}\right.\)\(\Leftrightarrow\left[{}\begin{matrix}1=x\\5x=3\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=1\\x=\dfrac{3}{5}\end{matrix}\right.\)

đúng ko nhỉ :)?