\(|\left(x+2\right)\left(x+8\right)|=0\)
\(\Leftrightarrow\) (x+2)(x+8) = 0
\(\Leftrightarrow\)\(\left[{}\begin{matrix}x+2=0\\x+8=0\end{matrix}\right.\)
\(\Leftrightarrow\)\(\left[{}\begin{matrix}x=-2\\x=-8\end{matrix}\right.\)
\(\left|\left(x+2\right)\left(x+8\right)\right|\)= 0 \(\Leftrightarrow\) (x+2)(x+8) = 0
\(\Leftrightarrow\) \(\left[{}\begin{matrix}x+2=0\\x+8=0\end{matrix}\right.\)
\(\Leftrightarrow\) \(\left[{}\begin{matrix}x=-2\\x=-8\end{matrix}\right.\)