Question

Factorise Using Algebraic Identities:

9(x + y)² - x²​

Answer 1

9(x + y)² - x²

3²(x + y)² - x²

[3(x + y)]² - x²

[3x + 3y]² - (x)²

(3x + 3y + x)(3x + 3y - x)

(4x + 3y)(2x + 3y)

Identity used : a² - b² = (a + b)(a - b)

Here is your answer @Avni☺️✌️