beardposey
beardposey beardposey
  • 18-06-2021
  • Mathematics
contestada

4x² + 3 = -7x
solve for x
x=_,_​

Respuesta :

kamilmatematik100504
kamilmatematik100504 kamilmatematik100504
  • 05-07-2021

[tex]\displaystyle\bf 4x^2+3=-7x\\\\4x^2+7x+3=0 \\D=49-48=1 \\\\x_{1;2}=\frac{-7\pm1}{8} => x_1=-1\quad ; \quad x_2=-\frac{3}{4} \\\\\\Answer:\boxed{x_1=-1\quad ; \quad x_2=-\frac{3}{4} }[/tex]

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