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Byju's Answer
Standard VIII
Mathematics
Finding Square of a Number Using Identity
Solve the fol...
Question
Solve the following:
Find the square by using identity
(
2
x
y
+
5
y
)
2
Open in App
Solution
(
2
x
y
+
5
y
)
2
(
a
+
b
)
2
=
a
2
+
b
2
+
2
a
b
(
2
x
y
+
5
y
)
2
(
2
x
y
)
2
+
(
5
y
)
2
+
2
×
2
x
y
×
5
y
4
x
2
y
2
+
25
y
2
+
20
x
y
2
Suggest Corrections
0
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