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Standard XII
Mathematics
Question
Simplify
a
2
−
b
2
a
−
b
=
________.
a
+
b
a
−
b
a
2
+
b
2
(
a
−
b
)
2
A
(
a
−
b
)
2
B
a
2
+
b
2
C
a
+
b
D
a
−
b
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Solution
Verified by Toppr
We have to find:
(
a
−
b
)
2
(
a
−
b
)
.
We know,
(
a
2
−
b
2
)
=
(
a
−
b
)
(
a
+
b
)
.
∴
(
a
2
−
b
2
)
(
a
−
b
)
=
(
a
−
b
)
(
a
+
b
)
a
−
b
=
(
a
+
b
)
.
Hence, option
A
is correct.
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