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Byju's Answer
Standard VIII
Mathematics
Simplification of an Expression
Solve: a3-8b...
Question
Solve:
a
3
−
8
b
3
−
64
c
3
−
24
a
b
c
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Solution
a
3
−
8
b
3
−
64
c
3
−
24
a
b
c
=
(
a
)
3
+
(
−
2
b
)
3
+
(
−
4
c
)
3
−
(
a
)
(
−
2
b
)
(
−
4
c
)
using the identity
a
3
+
b
3
+
c
3
−
3
a
b
c
=
(
a
+
b
+
c
)
(
a
2
+
b
2
+
c
2
−
a
b
−
b
c
−
c
a
)
=
(
a
−
2
b
−
4
c
)
(
a
2
+
4
b
2
+
16
c
2
+
2
a
b
−
8
b
c
+
4
c
a
)
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is
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