Question

-4x²+12x=0 alguem responde?

Answer 1

-4x^2+12x=0
delta=b^2-4ac
delta=12^2-4.(-4).0
delta=144+0
delta=144
x=-b-/+ raiz de delta/2a
x=-12-12/2.(-4)
x=-24/-8
x=3
x=-12+12/2.(-4)
x=0/-8
x=0