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Mathematics
Problem
Let
p
(
x
)
=
2
x
3
+
k
x
2
−
18
x
+
9
p(x)=2x^3+kx^2-18x+9
p
(
x
)
=
2
x
3
+
k
x
2
−
18
x
+
9
. If
x
=
3
x=3
x
=
3
is a zero of
p
(
x
)
p(x)
p
(
x
)
, which of the following lists all the zeros of
p
(
x
)
p(x)
p
(
x
)
? a)
3
,
−
3
,
2
3,\,-3,\,2
3
,
−
3
,
2
b)
3
,
−
3
,
1
2
3,\,-3,\,\dfrac{1}{2}
3
,
−
3
,
2
1
c)
3
,
1
,
−
1
2
3,\,1,\,-\dfrac{1}{2}
3
,
1
,
−
2
1
d)
3
,
−
3
2
,
−
3
3,\,-\dfrac{3}{2},\,-3
3
,
−
2
3
,
−
3
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