Question

-x²+12x=0 alguém me ajuda?

Answer 1

delta=b^2-4ac
delta=12^2-4.(-1).(0)
delta=144

X=-b-/+ raiz de delta/2a
X=-12-12/2.(-1)
X= -24/-2
X= -12

X=b-/+ raiz de delta/2a
X=-12+12/-2.(-1)
X= 0/-2
X= 0