Question

$factorise \: \: {4x}^{2} - {y}^{2} + 6y - 9$
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Answer 1

Answer:

=> 4x2 −y2 +6y − 9

=> 4x2 - ( y2 - 6y + 9)

=> 4x2 −(y2 − 6y + 9)

=> 4x2 - (y - 3)2

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

=> (2x− y + 3) (2x + y − 3)

Step-by-step explanation:

hope it's help you‼️‼️☑️☑️

Answer 2

kindly refer to attachment:-