Question

Factorise the following​

Answer 1

Answer:

Question :-

• 9x² - y² + 4y - 4

Answer :-

➙ 9x² - y² + 4y - 4

➻ 9x² - (y² - 4y + 4)

➻ (3x)² - {(y)² - 2 × y × 2 + (2)²} [a² - 2ab + b² = (a - b)²]

➻ (3x)² - (y - 2)² [a² - b² = (a + b) (a - b)]

➻ {3x + (y - 2)} {3x - (y - 2)}

➻ (3x + y -2) (3x - y + 2)

Answer 2

Answer:

please brainliest

and thanks