Question

If x+y+z=9,then find the value of (3-x)^3 + (3-y)^3 + (3-z)^3 - 3(3-x)(3-y)(3-z)

Answer 1

questions is not correct
we can assume anything means different answers
let x=2, y=3,z=4
(3-2)^3 +(3-3)^3 +(3-4)^3 -3(3-2)(3-3)(3-4)

=2^3 +0^3 + -1^3 - 3(1)×(0)×(-1)
=8-1
=7


x=3,y=3,z=3

answer=0

there should be value of ab+bc+ca to get right answer.