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Mathematics
Mathematics
Problem
Determine the set of real values of
k
k
k
for which the quadratic equation
x
2
+
(
k
−
4
)
x
+
k
+
1
=
0
x^2+(k-4)x+k+1=0
x
2
+
(
k
−
4
)
x
+
k
+
1
=
0
has no real roots.
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