(a^2-b^2)^3+(b^2-c^2)^3+(c^2-a^2)^3/(a-b)^3+(b-c)^3+(c-a)^3
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Step-by-step explanation:
a^2-b^2+b^2-c^2+c^2-a^2=0
a-b+b-c+c-a=0
(a^2-b^2)^3+(b^2-c^2)^3+(c^2-a^2)^3=3(a^2-b^2)(b^2-c^2)(c^2-a^2)
(a-b)^3+(b-c)^3+(c-a)^3=3(a-b)(b-c)(c-a)
on dividing we get
3(a^2-b^2)(b^2-c^2)(c^2-a^2)/3(a-b)(b-c)(c-a)
=(a+b)(b+c)(c+a)
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