Question

qual o valor dessa equação 12x²+4x=0 ?

Answer 1

Δ = 16 - 0
Δ = 16

x = -4 +-√16/24
x = -4 +-4/24

x' = -4+4/24
x' = 0/24 = 0

x'' = -4-4/24
x'' = -8/24
x'' = -1/3              ok