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Byju's Answer
Standard XII
Mathematics
nth Term of A.P
Simplify: x...
Question
Simplify:
(
x
+
y
)
(
x
2
−
x
y
+
y
2
)
A
x
3
−
y
3
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B
x
3
+
y
3
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C
x
3
+
y
3
+
3
a
b
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D
x
3
+
y
3
−
3
a
b
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Solution
The correct option is
B
x
3
+
y
3
(
x
+
y
)
(
x
2
−
x
y
+
y
2
)
=
x
(
x
2
−
x
y
+
y
2
)
+
y
(
x
2
−
x
y
+
y
2
)
=
x
3
−
x
2
y
+
x
y
2
+
x
2
y
−
x
y
2
+
y
3
=
x
3
+
y
3
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