Question

plzz give me answers ​

Answer 1

Step-by-step explanation:

(a+b)²=a²+b²+2ab

(a-b) ²=a²+b²-2ab

a²-b²

Answer 2

Answer:

1. (a+b)² = a² + 2ab + b²

2. (a-b)² = a² - 2ab + b²

3. (a+b) (a-b) = a²- b²