Question

x ao quadrado + 2x +1

Answer 1

igual a 1356 ao quadrado

Answer 2

x^2+2x+1=0
delta=b^2-4ac
delta=2^2-4.1.1
delta=4-4
delta=0
x=-b-/+ raiz de delta/2a
x=-2-0/2.1
x=-2/2
x=-1