Ответ:
3х²-8х-3=0
D=b²-4ac=(-8)²-4*3*(-3)=64+36=100
[tex]x_{1,2}=\frac{-bб\sqrt{D} }{2a}[/tex]
[tex]x_{1}=\frac{8+\sqrt{100} }{2*3}=\frac{8+10}{6}=\frac{18}{6}=3[/tex]
[tex]x_{2}=\frac{8-\sqrt{100} }{2*3}=\frac{8-10}{6}=\frac{-2}{6}=-\frac{1}{3}[/tex]
Ответ: [tex]x_{1}=3 ; x_{2}=-\frac{1}{3}[/tex]
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Ответ:
3х²-8х-3=0
D=b²-4ac=(-8)²-4*3*(-3)=64+36=100
[tex]x_{1,2}=\frac{-bб\sqrt{D} }{2a}[/tex]
[tex]x_{1}=\frac{8+\sqrt{100} }{2*3}=\frac{8+10}{6}=\frac{18}{6}=3[/tex]
[tex]x_{2}=\frac{8-\sqrt{100} }{2*3}=\frac{8-10}{6}=\frac{-2}{6}=-\frac{1}{3}[/tex]
Ответ: [tex]x_{1}=3 ; x_{2}=-\frac{1}{3}[/tex]