Question

plz tell it after that what i do solve it full

Answer 1

HEYA MATE, HERE IS UR ANSWER ____________________

a (b-c)-b (c-a)-c (a-b)
= ab-ac-bc+ba -ca+bc
= ab+ba -ac-ca -bc +bc
=2ab-2ac
=2a (b-c)


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Answer 2

ab-ac-bc-ba-ca-cb
=ab-ac-bc-ab-ac-bc
=0
(ab or ba ,ac or ca,bc or ca are same