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Mathematics
Problem
Factorise:
(
3
a
−
2
b
)
3
+
(
2
b
−
5
c
)
3
+
(
5
c
−
3
a
)
3
(3a-2b)^3 + (2b-5c)^3 + (5c-3a)^3
(
3
a
−
2
b
)
3
+
(
2
b
−
5
c
)
3
+
(
5
c
−
3
a
)
3
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