Question

question:-
x^2 + y^2 + z^2 + 2ab + 2bc + 2ca + xyz.
when x: 1 ; y: -1 ; z: 3 ; a:1 ; b: -2 ; c:2
pllz solve it fast!!!​..​

Answer 1

Answer:

0

Step-by-step explanation:

1 +1+9-4-8+4-3 = 15-15 =0