Question

решите уроанение x^2-7x+10=0

Answer 1

x² - 7x + 10 = 0
D = b² - 4ac
D = 49 - 40 = √9 = 3
$x1,2 = \frac{ - b ± \sqrt{D} }{2a}$
$x1 = \frac{7 - 3}{2} = 2$
$x2 = \frac{7 + 3}{2} = 5$

Ответ: 2; 5.