The sum of a-b+ab;b-c+bc;c-a+ac
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Answer:
ab + bc + ac
Step-by-step explanation:
a - b + ab + b - c + bc + c - a + ac
= a - a + b - b + c - c + ab + bc + ac
= 0 + 0 + 0 + ab + bc + ac
= ab + bc + ac
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