Question

[A-B][a+b] please answer me​

Answer 1

hope this helps u

(a+b)(a-b) = a²-b²

it is derived by multiplying it

(a+b)(a-b)

a(a-b) +b(a-b)

= a²-ba+ba - b²here ba and -ba get cancelled

we  get a²-b²