Question

9x² - y² + 4y - 4 i will mark brainliest ​

Answer 1

Answer:

BRO WHAT TO DO

Step-by-step explanation:

IF U WANT TO FACTORISE THEN.....

$8y {}^{2} + 4y - 4$

U take 4 common

$8y {}^{2} + 8y - 4y - 4$

$2y(4y + 1) - 2y(4y + 1)$

Answer 2

Answer:

yes ,

given that

9x^2-y^2+4y-4

--- 9x^2 - {y^2-2.y.2+(2)^2}

9x^2 - { y-2}^2

(3x)^2 - (y-2)^2

(3x-y-2) (3x+y-2)