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UPSC CDS Math Basic operation and Factorisation Questions
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© examsnet.com
Question : 40
Total: 77
The factors of
x
(
x
+
2
)
(
x
+
3
)
(
x
+
5
)
−
72
are
[2017 CDS-II]
x
,
(
x
+
3
)
,
(
x
+
4
)
and
(
x
−
6
)
(
x
−
1
)
,
(
x
+
6
)
and
(
x
2
−
2
x
−
12
)
(
x
−
1
)
,
(
x
+
6
)
and
(
x
2
+
5
x
+
12
)
(
x
+
1
)
,
(
x
−
6
)
and
(
x
2
−
5
x
−
12
)
Validate
Solution:
x
(
x
+
2
)
(
x
+
3
)
(
x
+
5
)
−
72
=
(
x
2
+
5
x
)
2
+
6
(
x
2
+
5
x
)
−
72
=
(
x
2
+
5
x
+
12
)
(
x
2
+
5
x
−
6
)
=
(
x
2
+
5
x
+
12
)
(
x
+
6
)
(
x
−
1
)
© examsnet.com
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