Vì x - 2 < x + 5
nên \(\left\{{}\begin{matrix}x\text{-}2\text{ < 0}\\x\text{+}5>0\end{matrix}\right.\)
=>\(\left\{{}\begin{matrix}x< 2\\x>\text{ −}5\end{matrix}\right.\)
=>−5 =>x e \(\left\{1,0,\text{−}1,\text{−}2,\text{−}3,\text{−}4\right\}\)
vậy ===-...
