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UPSC CDS 1 2020 Math Paper
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© examsnet.com
Question : 14
Total: 100
If (x + k) is the HCF of
x
2
+
5
x
+
6
and
x
2
+
8
x
+
15
, then what is the value of k?
5
3
2
1
Validate
Solution:
👈: Video Solution
k
2
−
5
k
+
6
=
k
2
−
8
k
+
15
⇒
3
k
=
9
⇒
k
=
3
© examsnet.com
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