Question

решите уравнение
$3 {x}^{2} - x - 5 = 0$

Answer 1

$3 {x}^{2} - x - 5 = 0$
D = 1+4*5*3 = 61
$x_{1} = \frac{-(-1)+ \sqrt{61} }{2*3} = \frac{1+ \sqrt{61} }{6}$
$x_{2} = \frac{-(-1)- \sqrt{61} }{2*3} = \frac{1- \sqrt{61} }{6}$

Ответ: $\frac{1+ \sqrt{61} }{6}$; $\frac{1- \sqrt{61} }{6}$