Question

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

1
-2bc
-1​

Answer 1

Answer:

-2bc

Step-by-step explanation:

$a(b + c) - b(a + c) - c(a + b) \\ = ab + ac - ab - bc - ac - bc \\ = - 2bc$

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Answer 2

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