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Functions
hard
0:00.0
If
f
(
x
)
=
3
x
2
−
1
f(x) = 3x^2 - 1
f
(
x
)
=
3
x
2
−
1
, what is
f
(
−
2
)
f(-2)
f
(
−
2
)
?
A
11
B
−
13
-13
−
13
C
5
D
−
7
-7
−
7
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