Question

tìm x

|x|-1=\(\frac{3}{2}\)

Answer 1

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

Answer 2

\(\left|x\right|-1=\dfrac{3}{2}\Rightarrow\left|x\right|=\dfrac{5}{2}\)

\(\Rightarrow x=\pm\dfrac{5}{2}\)

Answer 3

⇒x=3/2+1=5/2 hoặc x=-3/2+1=-1/2

Vậy x=5/2 hoặc x=-1/2