Question

Multiply (a−b)(a−b) please give answer

Answer 1

Answer:

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

Step-by-step explanation:

$(a - b) (a - b) \\ a {}^{2} - ab - ba + b {}^{2} \\ a {}^{2} - 2ab + b {}^{2}$

Answer 2

Answer:

a^2 - 2ab + b^2

Step-by-step explanation:

(a−b)(a−b) is known as a special product.  Either memorize the product, a^2 - 2ab + b^2, or use the FOIL method to expand (a−b)(a−b).