\(\left|x+1\right|>2\)
\(\left|x+1\right|\in\left\{3;4;5;6;7;........\right\}\)
\(x+1\in\left\{\pm3;\pm4;\pm5;\pm6;\pm7;..........\right\}\)
\(x\in\left\{.......-8;-7;-6;.........2;3;4;5;.......\right\}\)
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\(\left|x+1\right|>2\)
\(\left[{}\begin{matrix}x+1>2\\x+1< -2\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x>1\\x< -3\end{matrix}\right.\)
Vậy......................................
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