(a-b)(b-a) = -(a-b)(a-b) = -(a-b)^2 = -(a^2-2ab+b^2) ...
Recall that (a-b)(a+b) = a^2 - b^2
=Simplify/expand (a − b) (b − a)
=Simplify/expand (a − b) (b + a)
1 answer
=Simplify/expand (a − b) (b + a)
1 answer
2 answers
5 answers
1 answer
2 answers