Question

help please
a² + 8a +16
​

Answer 1

Hello.....

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

$a {}^{2} + 4a + 4a + 16$

$a(a + 4) + 4(a + 4)$

$(a + 4)(a + 4)$

$a = - 4 \\ a = - 4$

Answer 2

Step-by-step explanation:

we know

a²+4a+4a+16

a(a+4) + 4(a+4)

(a+4) (a+4)

therefore

a= -4