Question

class 9 polynomial identities list order wise till identity IX​

Answer 1

Answer:

↠ (x + y)² = x² + 2xy + y²

↠ (x – y)² = x² – 2xy + y²

↠ x² – y² = (x + y) (x – y)

↠ (x + a) (x + b) = x² + (a + b)x + ab.

↠ (x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx

↠ (x + y)³ = x³ + y³ + 3xy(x + y)

↠ (x – y)³ = x³ – y³ – 3xy(x – y)

↠ x³ + y³ + z³ – 3xyz = (x + y + z) (x² + y² + z² – xy – yz – zx)

Hope it helps! o(*￣▽￣*)ブ