Đáp án:
._.
Giải thích các bước giải:
`k) (3x-1)^3+13=2`
`=> (3x-1)^3=2-13`
`=> (3x-1)^3=-11`
`=> x in ∅`
`m) |2x-3|=|x-3|`
`=>`\(\left[ \begin{array}{l}2x-3=x-3\\2x-3=-x+3\end{array} \right.\)`=>` \(\left[ \begin{array}{l}2x-x=-3+3\\2x+x=3+3\end{array} \right.\) `=>`\(\left[ \begin{array}{l}x=0\\3x=6\end{array} \right.\)
`=>`\(\left[ \begin{array}{l}x=0\\x=2\end{array} \right.\)
