Question

a(b-c)+b(c-a)+c(a-b)

Answer 1

Hey...!!!

a( b - c) + b ( c - a) + c ( a - b)
= ab - ac + bc - ab + ac - bc
= ab - ab - ac + ac + bc - bc
= 0 + 0 + 0
= 0

Hope it helps...!!!

Answer 2

a(b-c)+b(c-a)+c(a-b)
=ab-ac+bc-ba+ca-cb
=ab-ab+bc-bc+ca-ca
=0