Question

Factorise
a2 + 4a +4

Answer 1

Answer:

Step-by-step explanation:

a2 + 4a + 4 – b2

= (a)2 + 2  × a × 2 + (2)2 – (b)2

= (a + 2)2 – (b)2

= (a + 2 + b) (a + 2 – b)

= (a + b + 2) (a – b + 2)

Answer 2

Answer:

see the photo for the required answer.

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