Question

Multimea soluțiilor ecuatiei 2 times x squared plus 3 times x plus 1 =0 este ...

Answer 1

2x²+3x+1=0
Δ=9-8
Δ=1
x1,2=-b+-√Δ / 2a
x1=-3+1/4
x1=-1/2
x2=-3-1/4
x2=-1

x∈(-1,-1/2}