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Mathematics
Problem
If the quadratic equation
k
x
2
+
4
x
+
1
=
0
kx^{2}+4x+1=0
k
x
2
+
4
x
+
1
=
0
has two equal real roots, what is the value of
k
k
k
? a)
−
4
-4
−
4
b)
2
2
2
c)
4
4
4
d)
8
8
8
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