1.

If a=25, b=15 , c=-10 then find the value of $$ {a^{3}+b^{3}+c^{3}-3abc over {(a-b)^{2}+(b-c)^{2} +(c-a)^{2}}}$$

A. 30
B. -15
C. -30
D. 15
Answer» E.


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