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Byju's Answer
Standard IX
Mathematics
Factorization of Expressions Reducible to Difference of Two Squares
Factorise 32 ...
Question
Factorise
32
a
4
−
8
a
4
A
8
a
2
(
2
a
−
1
)
(
2
a
+
1
)
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B
8
a
(
2
a
−
1
)
(
2
a
+
1
)
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C
4
a
2
(
2
a
−
1
)
(
2
a
+
1
)
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D
32
a
2
(
2
a
+
1
)
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Solution
The correct option is
A
8
a
2
(
2
a
−
1
)
(
2
a
+
1
)
32
a
4
−
8
a
4
Taking 8
a
2
common we have
=
8
a
2
(
4
a
2
−
1
=
8
a
2
(
(
2
a
)
2
−
1
)
{
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
}
=
8
a
2
(
2
a
−
1
)
(
2
a
+
1
)
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