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Byju's Answer
Standard IX
Mathematics
Algebraic Identities
Using suitabl...
Question
Using suitable identity, evaluate
(
−
32
)
3
+
(
18
)
3
+
(
14
)
3
Open in App
Solution
Let
a
=
−
32
,
b
=
18
,
c
=
14
We see that
a
+
b
+
c
=
−
32
+
18
+
14
=
0
Now as we know that,
If
a
+
b
+
c
=
0
then
a
3
+
b
3
+
c
3
=
3
a
b
c
So
(
−
32
)
3
+
(
18
)
3
+
(
14
)
3
=
3
(
−
32
)
(
18
)
(
14
)
∴
(
−
32
)
3
+
(
18
)
3
+
(
14
)
3
=
−
24192
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3
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