Question

simplify : a(b-c) -b(c-a) -c(a-b)​

Answer 1

Answer:

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

ab-ac-bc+ab-ac+bc

ab+ab-ac-ac-bc+bc

2ab-2ac

Answer 2

$ab - ac - bc + ba - ca + cb \\ - ab - bc - ca + ab + bc + ca \\ \\ all \: cuts \: each \: other \: and \: gives \: answer \\ = 0$

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