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Mathematics
Problem
Determine the integer value of
k
k
k
for which the quadratic polynomial
(
k
+
1
)
x
2
+
5
x
+
k
(k+1)x^{2}+5x+k
(
k
+
1
)
x
2
+
5
x
+
k
can be expressed as a product of two linear factors with integer coefficients. a)
3
3
3
b)
2
2
2
c)
6
6
6
d)
1
1
1
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