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Byju's Answer
Standard VIII
Mathematics
Product of (x+y) (x-y)
Expand using ...
Question
Expand using identities:
(
3
x
−
5
y
)
2
Open in App
Solution
(
3
x
−
5
y
)
2
=
(
3
x
−
5
y
)
(
3
x
−
5
y
)
=
(
3
x
)
2
−
2.3
x
.5
y
+
(
5
y
)
2
=
9
x
2
−
30
x
y
+
25
y
2
∴
(
3
x
−
5
y
)
2
=
9
x
2
−
30
x
y
+
25
y
2
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