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Mathematics
Mathematics
Problem
Determine the value of
k
k
k
for which the function
f
(
x
)
=
x
+
2
x
2
+
k
x
+
k
f(x)=\dfrac{x+2}{x^{2}+kx+k}
f
(
x
)
=
x
2
+
k
x
+
k
x
+
2
is undefined only at
x
=
−
2
x=-2
x
=
−
2
. a)
k
=
0
k=0
k
=
0
b)
k
=
4
k=4
k
=
4
c)
k
=
−
4
k=-4
k
=
−
4
d)
k
=
2
k=2
k
=
2
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