Question

a(b -c) + b(c – a) + c(a – b) is equal to​

Answer 1

Answer:

(a-b-c)^2

is the correct answer

Answer 2

$\bold{a(b-c)+b(c-a)+c(a-b)}$

$\bold{=\cancel{\blue{ab}}-\cancel{\orange{ca}}+\cancel{\green{bc}}-\cancel{\blue{ab}}+\cancel{\orange{ca}}-\cancel{\green{bc}}}$

$\bold{=}$$\bold{\red{0}}$