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Mathematics
Problem
Consider
p
(
x
)
=
2
x
x
2
+
6
x
+
1
p(x)=\dfrac{2x}{x^{2}+6x+1}
p
(
x
)
=
x
2
+
6
x
+
1
2
x
. The domain of
p
(
x
)
p(x)
p
(
x
)
is a)
R
∖
{
−
6
+
4
2
,
−
6
−
4
2
}
\mathbb R\setminus\{-6+4\sqrt{2},\,-6-4\sqrt{2}\}
R
∖
{
−
6
+
4
2
,
−
6
−
4
2
}
b)
R
∖
{
−
3
+
2
2
,
−
3
−
2
2
}
\mathbb R\setminus\{-3+2\sqrt{2},\, -3-2\sqrt{2}\}
R
∖
{
−
3
+
2
2
,
−
3
−
2
2
}
c)
R
∖
{
3
+
2
2
,
3
−
2
2
}
\mathbb R\setminus\{3+2\sqrt{2},\,3-2\sqrt{2}\}
R
∖
{
3
+
2
2
,
3
−
2
2
}
d)
R
∖
{
−
3
}
\mathbb R\setminus\{-3\}
R
∖
{
−
3
}
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