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National and Regional Contests
Moldova Contests
Chisinau City MO
1949-56 Chisinau City MO
13
13
Part of
1949-56 Chisinau City MO
Problems
(1)
Chisinau MO p13 1949-56 VIII-IX factor (a+b+c)^3- a^3 -b^3 -c^3
Source:
3/15/2021
Factor the polynomial
(
a
+
b
+
c
)
3
−
a
3
−
b
3
−
c
3
(a+b+c)^3- a^3 -b^3 -c^3
(
a
+
b
+
c
)
3
−
a
3
−
b
3
−
c
3
algebra
Factoring