Question

25. Show that (a - b)(a + b) + (b-c) (b+c)+(c-a) (c + a) = 0​

Answer 1

Answer:

(a-b)(b-c)+(b-c)(b+c)+(c-a)(c+a)=0

a²-b²+b²-c²+c²-a²

the next equation will be 0