Question

find the factorise:x2+8x+16​

Answer 1

Answer:

$= {x}^{2} + 8x + 16 \\ \\ \\ \\ \\ = {x}^{2} + 4x + 4x + 16 \\ \\ \\ \\ \\ = x(x + 4) + 4(x + 4) \\ \\ \\ \\ \\ = {(x + 4)}^{2}$

Answer 2

Answer:

x=-4

Step-by-step explanation:

x²+8x+16

x²+4x+4x+16

x(x+4)+4(x+4)

(x+4)(x+4)

x=-4