Question

rezolvati ecuatia -3x la puterea a2a +x +2=0

Answer 1

-3x²+x+2=0 |*(-1)

3x²-x-2=0

Δ=1+3*2*4=25

x₁=(1+5)/6=1

x₂=(1-5)/6=-2/3

S={-2/3;1}