Question

a^2+b^2+c^2-ab-bc-ca is equal​

Answer 1

Answer:

Step-by-step explanation:

(a-b)^2 + (b-c)^2 + (c-a)^2

Answer 2

Answer:

$a^{2}$ - ab - ac + $b^{2}$ - bc + $c^{2}$

Hope it helps