Question

evaluate : 1) (a+b) (a-b)​

Answer 1

Step-by-step explanation:

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

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

Answer 2

Answer:

a^2 - b^2

Step-by-step explanation:

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

a^2 -ab +ab -b^2

a^2 -b^2

I hope this helps you ☺️