Question

qual a solução de 6x ao quadrado+x-2=0

Answer 1

Δ=1²-4.6.(-2)
Δ=1+48
Δ=49
x=-1±√49/2.6
x'=-1+7/12
x'=6/12 x'=1/2 x"=-1-7/12 x"=-8/12 x"=-2/3

Answer 2

a=6
b=x
c=-2

Δ≡1-4.a.c
Δ=1-4.6.(-2)
Δ=1+48
Δ=49

x=-b√49
        2.6
x1=-1+7=6/12=1/2
         12

x2=-1-7=-8/12=-2/3
        12