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Byju's Answer
Standard VII
Mathematics
Factorising a Binomial
Factorize : 2...
Question
Factorize :
25
x
2
−
9
A
(
25
x
+
9
)
(
25
x
−
9
)
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B
(
5
x
+
9
)
(
5
x
−
9
)
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C
(
5
x
−
3
)
(
5
x
−
3
)
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D
(
5
x
+
3
)
(
5
x
−
3
)
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Solution
The correct option is
D
(
5
x
+
3
)
(
5
x
−
3
)
25
x
2
−
9
=
(
5
x
)
2
−
(
3
)
2
(
5
x
)
2
−
(
3
)
2
=
(
5
x
+
3
)
(
5
x
−
3
)
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1
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