3x²+5x+2=0
a=3;b=5;c=2
D=b²-4ac=5²-4×3×2=25-24=1;√D=√1=1
x1=(-5-1)/(2×3)=(-6)/6=-1
x2=(-5+1)/(2×3)=(-4)/6=-2/3
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3x²+5x+2=0
a=3;b=5;c=2
D=b²-4ac=5²-4×3×2=25-24=1;√D=√1=1
x1=(-5-1)/(2×3)=(-6)/6=-1
x2=(-5+1)/(2×3)=(-4)/6=-2/3