Question

(a-b) (a-b) - (a+b) (a-b) is equal to​

Answer 1

Answer:

Please go through the pic attached above. Hope its correct and helps you.

Answer 2

Answer:

(a-b)²-(a²+b²)

a²+b²-2ab-a²-b²

=-2ab

Step-by-step explanation:

formulae of (a-b)²

and the formulae of a²+b²

if it is helpful like it