Question

-x2+6x-5=0
qual e a resposta

Answer 1

-x^2+6x-5=0
delta=b^2-4.a.c
delta=6^2-4.(-1).(-5)
delta=36-20
delta=16
x=-b-/+ raiz de delta/2a
x=-6-4/2.(-1)
x=-10/-2
x=5
x=-6+4/2.(-1)
x=-2/-2
x=1