Question

função $f(x)=-3 x^{2} -6x-3$

Answer 1

-3x^2-6x-3=0
delta=b^2-4ac
delta=(-6)^2-4.(-3).(-3)
delta=36-36
delta=0
x=-b-/+ raiz de delta/2a
x=-(-6)-0/2.(-3)
x=6-0/-6
x=6/-6
x=-1