Question

3х²-6х-4=0 помогите?!

Answer 1

3х²-6х-4=0 
D=b²-4ac
D=36+4*3*4=36+48=84=21*4
x₁=(6+2√21)/6=1+√21 :3=1+√(7/3)
x₂=1-√21 :3=1-√(7/3)