Question

The common factor of a² m² and a'² is (3)​

Answer 1

Answer:

(a + b)² = a² + 2 ab + b²

(a - b)² = a² - 2 ab + b²

a² - b² = (a + b) (a - b)

a³ + b³ = (a + b)(a²- ab + b²)

a³- b³= (a - b)(a² + ab + b²)

(a + b + c)²= a² + b²+ c² + 2ab + 2bc + 2ca

(a + b)³=a³ + 3 a²b + 3 ab² + b³

(a - b)³=a³- 3 a²b + 3 ab² - b³