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Byju's Answer
Standard XII
Mathematics
Change of Variables
(2x + 3y)2 + ...
Question
(2x + 3y)2 + 3(2x + 3y) – 10 is equal to
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Similar questions
Q.
(
2
x
−
3
y
)
3
+
(
x
+
3
y
)
3
+
3
(
2
x
−
3
y
)
2
(
x
+
3
y
)
+
3
(
2
x
−
3
y
)
(
x
+
3
y
)
2
=
Q.
The expression
(
2
x
−
3
y
)
3
+
(
x
+
3
y
)
3
+
3
(
2
x
−
3
y
)
2
(
x
+
3
y
)
+
3
(
2
x
−
3
y
)
(
x
+
3
y
)
2
=
Q.
The value of
(
2
x
−
3
y
)
3
+
(
x
+
3
y
)
3
+
3
(
2
x
−
3
y
)
2
(
x
+
3
y
)
+
3
(
2
x
−
3
y
)
(
x
+
3
y
)
2
is
Q.
Evaluate :
(i)
(
2
x
+
3
y
)
2
(ii)
(
2
x
−
3
y
)
2
(iii)
(
2
x
+
3
y
)
(
2
x
−
3
y
)
Q.
If 2x + 3y = 14 and 2x − 3y = 2, find the value of xy.
[Hint: Use (2x + 3y)
2
− (2x − 3y)
2
= 24xy]
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