Question

x в квадрате-5x-24=0​

Answer 1

$d = { - 5}^{2} - 4 \times 1 \times ( - 24) = 121$

$x1 = \frac{5 + \sqrt{121} }{2 \times 1} = 8$

$x2 \: = \frac{5 - \sqrt{121} }{2 \times 1} = - 3$