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Standard VIII
Mathematics
Algebraic Identities
Question
Use the identity and expand the following
(
2
x
+
y
)
2
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Solution
Verified by Toppr
using ientity
→
(
a
+
b
)
2
=
a
2
+
b
2
+
2
a
b
∴
(
2
x
+
y
)
2
=
(
2
x
)
2
+
(
y
)
2
+
2
(
2
x
)
(
y
)
=
4
x
2
+
y
2
+
4
x
y
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