Răspuns :
3x²+11x+8=
a=3, b=11, c=8
Δ=121-4*3*8
Δ=121-96
Δ=25 ⇒ √Δ=5
x1=-11+5/6
x1=-6/6=-1
x2=-11-5/6
x2=-16/6 = -2/3
3x²+11x+8=3(x+1)(x+2/3)
a=3, b=11, c=8
Δ=121-4*3*8
Δ=121-96
Δ=25 ⇒ √Δ=5
x1=-11+5/6
x1=-6/6=-1
x2=-11-5/6
x2=-16/6 = -2/3
3x²+11x+8=3(x+1)(x+2/3)