Question

factorise the following expressions a²+8a+16​

Answer 1

Step-by-step explanation:

=a²+4a+4a+16

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

=(a+4)(a+4)

=(a+4)²

if helpful please mark as brainliest

Answer 2

Answer:

The factor is -4

Step-by-step explanation:

a²+8a+16=0

$a^{2} + 4a + 4a + 16 = 0 \\ a(a + 4) + 4(a + 4) = 0 \\ (a + 4)(a + 4) = 0 \\ a = - 4$