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Mathematics
Problem
Determine the real x-intercept(s) of the polynomial
f
(
x
)
=
x
3
−
4
x
f(x)=x^{3}-4x
f
(
x
)
=
x
3
−
4
x
. a)
(
−
2
,
0
)
(-2,0)
(
−
2
,
0
)
and
(
2
,
0
)
(2,0)
(
2
,
0
)
b)
(
−
1
,
0
)
,
(
0
,
0
)
,
(
4
,
0
)
(-1,0),\,(0,0),\,(4,0)
(
−
1
,
0
)
,
(
0
,
0
)
,
(
4
,
0
)
c)
(
−
2
,
0
)
,
(
0
,
0
)
,
(
2
,
0
)
(-2,0),\,(0,0),\,(2,0)
(
−
2
,
0
)
,
(
0
,
0
)
,
(
2
,
0
)
d)
(
−
2
3
,
0
)
,
(
2
3
,
0
)
\left(-\dfrac{2}{\sqrt{3}},0\right),\,\left(\dfrac{2}{\sqrt{3}},0\right)
(
−
3
2
,
0
)
,
(
3
2
,
0
)
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