Question

Х(х-5)=-6 найти корень уравнения

Answer 1

$x(x - 5) = - 6 \\ {x}^{2} - 5x + 6 = 0 \\ d = { (- 5)}^{2} - 4 \times 6 = 25 - 24 = 1 \\ x1 = \frac{5 + 1}{2} \\ x2 = \frac{5 - 1}{2} \\ \\ x1 = 3 \\ x2 = 2$
Готово.