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Mathematics
Problem
Find the set of excluded values for
g
(
x
)
=
x
2
+
3
x
+
2
x
2
−
4
g(x)=\dfrac{x^2+3x+2}{x^2-4}
g
(
x
)
=
x
2
−
4
x
2
+
3
x
+
2
. a)
{
−
2
,
2
}
\{-2,\;2\}
{
−
2
,
2
}
b)
{
−
2
,
−
1
,
2
}
\{-2,\,-1,\,2\}
{
−
2
,
−
1
,
2
}
c)
{
−
4
,
4
}
\{-4,\,4\}
{
−
4
,
4
}
d)
{
0
}
\{0\}
{
0
}
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