Given
f
(
x
)
=
−
2
x
−
4
x
−
5
\displaystyle {f{{\left({x}\right)}}}=\frac{{-{2}{x}-{4}}}{{{x}-{5}}}
f
(
x
)
=
x
−
5
−
2
x
−
4
and
g
(
x
)
=
x
+
3
−
x
+
1
\displaystyle {g{{\left({x}\right)}}}=\frac{{{x}+{3}}}{{-{x}+{1}}}
g
(
x
)
=
−
x
+
1
x
+
3
, the domain of
f
(
x
)
⋅
g
(
x
)
\displaystyle {f{{\left({x}\right)}}}\cdot{g{{\left({x}\right)}}}
f
(
x
)
⋅
g
(
x
)
is all real numbers except
x
\displaystyle {x}
x
=
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