Respostas

2014-07-23T19:29:07-03:00
Prezado(a) Jessicalealcarv,

-2x² + 6x = 0 (-1)
2x² - 6x = 0
x(2x - 6) = 0

x' = 0

2x = 6
x = 6/2
x = 3

x' = 0
x'' = 3
  • Usuário do Brainly
2014-07-23T19:35:17-03:00
-2x²+6x=0
2x(-x+3)=0
-x+3=0
-x=-3 .(-1)
x=3
2x=0
x=0/2
x= 0

Espero ter ajudado ! Bons Estudos ;-)