Question

a²+8a+16 factorise the expression​

Answer 1

Answer:

Step-by-step explanation:

Method:-1

$a^{2} + 8a + 16$

$= a^{2} + 4a + 4a + 16\\= a( a+ 4) + 4 ( a+ 4)\\= (a+4) (a+4)$  

Method:-2

$a^{2} + 8a + 16$

$= (a+4)^{2}$  ( perfect square)

= (a + 4) (a + 4)

Answer 2

Answer:

Step-by-step explanation:

This is in the form of (a+b)^2

So the answer is

(a+4)^2