Question

X2+2×+1=0

(Formula de bhaskara)

Answer 1

Resposta:

X²+2×+1=0

Δ=b²-4·a·c

Δ= 4-4=0

x=$\frac{-b+-\sqrt{delta} }{2a}$

x=$\frac{-2+-0}{2}$

x= -1

*espero ter ajudado