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Mathematics
Problem
For which value of
k
k
k
does the quadratic
(
k
+
1
)
x
2
−
5
x
+
k
=
0
(k+1)x^2-5x+k=0
(
k
+
1
)
x
2
−
5
x
+
k
=
0
have real roots whose sum is
5
5
5
? a)
−
2
-2
−
2
b)
1
1
1
c)
0
0
0
d)
−
1
2
-\dfrac{1}{2}
−
2
1
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