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Byju's Answer
Standard VIII
Mathematics
Expansion of (x^2 - y^2)
One of the fa...
Question
One of the factors of
x
2
+
1
x
2
+
2
−
2
x
−
2
x
is
A
x
−
1
x
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B
x
+
1
x
−
1
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C
x
+
1
x
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D
x
2
+
1
x
2
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Solution
The correct option is
C
x
+
1
x
x
2
+
1
x
2
+
2
−
2
x
−
2
x
=
(
x
2
+
1
x
2
+
2
)
−
2
(
x
+
1
x
)
=
(
x
+
1
x
)
2
−
(
x
+
1
x
)
=
(
x
+
1
x
)
(
x
+
1
x
−
2
)
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0
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