Question

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

Answer 1

a^2 - 2ab + b^2

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).

Answer 2

`a {}^(2) - 2ab + b {}^(2)`

Explanation:

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