Question

a-b+ab+b-c+bc+ac-a+ac add the following​

Answer 1

Answer:

ab+bc+2ac-c

or

b(a+c)+c(2a-1)

Answer 2

TO ADD:-

a - b + ab , b - c + bc , c - a + ac

a - b + b - c + c - a + ab + bc + ac

= 0 + ab + bc + ac

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