Ответ:
0 \\ x = \frac{ - 1 + - \sqrt{61} }{2 \times 5} = \frac{ - 1 + - 7.8}{10} \\ x1 = \frac{ - 1 + 7.8}{10} = \frac{6.8}{10} = 0.68 \\ x2 = \frac{ - 1 - 7.8}{10} = \frac{ - 8.8}{10} = - 0.88" alt="5 {x}^{2} + x - 3 = 0 \\ d = {1}^{2} - 4 \times ( - 3) \times 5 = 1 + 60 = 61 > 0 \\ x = \frac{ - 1 + - \sqrt{61} }{2 \times 5} = \frac{ - 1 + - 7.8}{10} \\ x1 = \frac{ - 1 + 7.8}{10} = \frac{6.8}{10} = 0.68 \\ x2 = \frac{ - 1 - 7.8}{10} = \frac{ - 8.8}{10} = - 0.88" align="absmiddle" class="latex-formula">
Пошаговое объяснение:
Всё :)