Question

Tìm x bt:

|X|-3/2=1/4

Answer 1

|x|-\(\frac{3}{4}\)=\(\frac{1}{4}\)

\(\Rightarrow\) |x| =\(\frac{1}{4}\)+\(\frac{3}{4}\)

\(\Rightarrow\) |x| =\(\frac{7}{4}\)

\(\Rightarrow\)x=\(\frac{7}{4}\)hoặc x=\(\frac{-7}{4}\)

Vậy x\(\in\)\(\left\{\frac{-7}{4};\frac{7}{4}\right\}\)

Answer 2

Answer 3

ngu van ???????????????????