Question

Using suitable identity evaluate (-28)^3+(9)^3+(19)^3.

Answer 1

a³+b³+c³ this needs to be solved 
by formula we have that if the sum of a ,b and c is 0 then a³+b³+c³=3abc 
= -28+9+19=0
so ,a³+b³+c³=3*-28*9*19=?{u can find }