Question

Ab - bc+ ac, bc - ca+ ab, ca - ab-2bc

Answer 1

`ab-2bc+ca`

Explanation:

Complete question is given below

Add:-

ab-bc+ac,bc-ca+ab,ca-ab-2bc

We have to find the result after addition

Now, adding all expression

We get

`ab-bc+ac+bc-ca+ab+ca-ab-2bc`

Combine like terms then, we get

`(ab+ab-ab)+(bc-bc-2bc)+(ac-ca+ca)`

`ab-2bc+ca`

Hence,
`ab-bc+ac+bc-ca+ab+ca-ab-2bc=ab-2bc+ca`