D-. 1/3
Espero te sirva~
Respuesta:
[tex]-\frac{3}{4}[/tex] ; La correcta es la opción B )
Explicación paso a paso:
[tex]12x^{2} +5x=3[/tex]
[tex]12x^{2} +5x-3=0[/tex]
Aplicando la fórmula general:
[tex]x =\frac{-b \frac{+}{} \sqrt{b^{2} -4ac} }{2a}[/tex]
[tex]a=12;b=5;c=-3[/tex]
[tex]x = \frac{-5\frac{+}{}\sqrt{5^{2}-4(12)(-3) } }{2(12)} =\frac{-5\frac{+}{}\sqrt{25+144} }{24} =\frac{-5\frac{+}{}\sqrt{169} }{24} =\frac{-5\frac{+}{} 13}{24}[/tex]
[tex]x_{1} =\frac{-5+13}{24} =\frac{8}{24} = \frac{1}{3}[/tex]
[tex]x_{2} =\frac{-5-13}{24} = \frac{-18}{24} =-\frac{3}{4}[/tex]
El menor valor de x es: [tex]- \frac{3}{4}[/tex]
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D-. 1/3
Espero te sirva~
Respuesta:
[tex]-\frac{3}{4}[/tex] ; La correcta es la opción B )
Explicación paso a paso:
[tex]12x^{2} +5x=3[/tex]
[tex]12x^{2} +5x-3=0[/tex]
Aplicando la fórmula general:
[tex]x =\frac{-b \frac{+}{} \sqrt{b^{2} -4ac} }{2a}[/tex]
[tex]a=12;b=5;c=-3[/tex]
[tex]x = \frac{-5\frac{+}{}\sqrt{5^{2}-4(12)(-3) } }{2(12)} =\frac{-5\frac{+}{}\sqrt{25+144} }{24} =\frac{-5\frac{+}{}\sqrt{169} }{24} =\frac{-5\frac{+}{} 13}{24}[/tex]
[tex]x_{1} =\frac{-5+13}{24} =\frac{8}{24} = \frac{1}{3}[/tex]
[tex]x_{2} =\frac{-5-13}{24} = \frac{-18}{24} =-\frac{3}{4}[/tex]
El menor valor de x es: [tex]- \frac{3}{4}[/tex]