Question

Write the identities.

1] ( a + b) ( a – b) =_______________________

2] ( a + b ) 2= __________________

3] ( a –b)2 = _______________________

4] ( a + b – c) 3= _________________​

Answer 1

Answer:

• a² - b²
• a² + 2ab + b²
• a² - 2ab + b²

Answer 2

Step-by-step explanation:

1. a2-b2
2. a2+2ab+b2
3. (a+b) (a-b)