Question

Решите уравнение x^2-17х=322

Answer 1

$x {}^{2} - 17x = 322 \\ x {}^{2} - 17x - 322 = 0 \\ d = 17 { }^{2} + 4 \times 322 = 289 + 1288 = 1577 \\ x1 = \frac{17 - \sqrt{1577} }{2} \\ x2 = \frac{17 + \sqrt{1577} }{2}$