125d^3+c^12
5^3 d^3+c^3×4
(5d)^3+(c^4)^3
(5d+c^4)×( (5d)^2-5dc^4+(c^4)^2)
(5d+c^4)×(25d^2-5c^4 d+c^8)
125d^3+c^12
5^3 d^3+c^3×4
(5d)^3+(c^4)^3
(5d+c^4)×( (5d)^2-5dc^4+(c^4)^2)
(5d+c^4)×(25d^2-5c^4 d+c^8)