Question

-5x^2+x=0 Решите Уравнение

Answer 1

Ответ:

$- 5 {x}^{2} + x = 0 \\ 5 {x}^{2} - x = 0 \\ d = {( - 1)}^{2} - 4 \times 5 \times 0 = 1 \\ x = \frac{ - 1 + 1}{10} = \frac{0}{10} = 0 \\ x = \frac{ - 1 - 1}{10} = - \frac{2}{10} = - 0.2$

первый х =0

второй х=-0,2