Question

x2+4x+4=0 me ajudem pfvr

Answer 1

ax²+bx+c=0

Δ=(b)²-4ac

x=-b+/-√Δ
         2a

x²+4x+4=0

a=1
b=4
c=4

Δ=(4)²-4·1·4
Δ=16-16
Δ=0

x=-4+/-√0=∉
         2