Question

if a = 1, b = -2 and c = 3 then find the value of a² +b²+c²+ab+bc+ca​

Answer 1

Step-by-step explanation:

1^2 + (-2)^2 + (3)^2 + 1× (-2) + (-2) × (3) + 3 × 1

1 + 4 + 9 -2 -6 + 3

14 -8 + 3

17 - 8

9

Answer 2

Answer:

answer =9

mark me as a brilliant list