Question

3x²-10x-8=0 ocupo todo jajajajaj



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Answer 1

Respuesta:

$3x^2-10x-8=0\quad :\quad x=4,\:x=-\frac{2}{3}$

Explicación paso a paso:

$3x^2-10x-8=0$

$x_{1,\:2}=\frac{-\left(-10\right)\pm \sqrt{\left(-10\right)^2-4\cdot \:3\left(-8\right)}}{2\cdot \:3}$

$\sqrt{\left(-10\right)^2-4\cdot \:3\left(-8\right)}=14$

$x_{1,\:2}=\frac{-\left(-10\right)\pm \:14}{2\cdot \:3}$

$x=\frac{-\left(-10\right)+14}{2\cdot \:3}:4$

$x=\frac{-\left(-10\right)-14}{2\cdot \:3}:-\frac{2}{3}$

$x=4,\:x=-\frac{2}{3}$