Question

Помогите решить уравнение (х-5)^2=22-6х

Answer 1

(x - 5)² = 22 - 6x
x² - 10x + 25 = 22 - 6x
x² - 4x + 3 = 0
D = 16 - 4 * 1 * 3 = 16 - 12 = 4
x1 = (4 + 2)/2 * 1 = 3
x2 = (4 - 2)/2 * 1 = 1