Question

resolva as esquacaes do 2 grau, usando formula geral. x²+4x+4=0

Answer 1

x² + 4x + 4 = 0
a = 1 | b = 4 | c = 4

Δ = b² - 4·a·c
Δ = 4² - 4·1·4
Δ = 16 - 16
Δ = 0

x = (-b ±√Δ) / 2·a
x = (-4 ±√0) / 2·1
x = -4/2
x = -2