Question

ab – bc - ac + c^2 + ab - bc
1​

Answer 1

Answer:

2 ab -2bc - ac + c^2

I directly solved this

hope this helps you

Answer 2

$\huge\underline\mathbf\red{♡Answer♡}$

ab-bc-ac+c²+ab-bc

=ab+ab-bc-bc-ac+c²

=2ab-2bc-ac+c²