Question

Please answer fast. Factorise x2+6x+9-4y2. Mj

Answer 1

x2 + 6x + 9 – 4y2

= (x)2 + 2 × x × 3 + (3)2 – (2y)2

= (x + 3)2 – (2y)2

= (x + 3 + 2y) (x + 3 – 2y)

= (x + 2y + 3) (x – 2y + 3)

Answer 2

Answer:

★ Refer to the attachment