a, 2-|$\frac{3}{2}$x- $\frac{1}{4}$| =| $\frac{-5}{4}$|
b, |x|+|1-x|=x+|x-3|
c,|(x+$\frac{1}{2}$)|2x- $\frac{3}{4}$||=2x- $\frac{3}{4}$
Loga
Sinh Học lớp 12
