Question

Resolva 2xelevado ao quadrado+×=0

Answer 1

2x² + x = 0
a = 2
b = 1
c = 0

Δ = b² - 4ac
Δ = 1² - 4.2.0
Δ = 1² = 1

x = -b ± √Δ / 2a
x = -1 ± √1 / 2.2
x = -1 ± 1 / 4
x1 = -1 + 1 / 4 = 0/4 = 0
x2 = -1 -1 /4 = -2/4 = -1/2

S = {-1/2, 0}