Question

Expanded form of (a-b)(a-b)
Algebraic identities

Answer 1

Step-by-step explanation:

(a-b) (a+b)

$= {a}^{2} + ab - ab - {b}^{2}$

$= {a}^{2} - {b}^{2}$

Answer 2

Step-by-step explanation:

(a-b) (a-b)

By multiplication

a^2-ab-ab+b^2

a^2-2ab+b^2

(a-b)^2