Question

Factorise:
x2 + 8x + 16​

Answer 1

Answer:

x²+8x+16=0

→ x²+4x+4x+16=0

→x(x+4) +4(x+4) =0

→ (x+4) (x+4) =0

→ (x+4) =0 Or (x+4) =0

→ x= -4 or x=-4

Therefore,

(-4, -4) are the roots of the quadratic equation.