Ответьте пожалуйста на 9 и 11 уравнение
9) 6/x = x + 1
x(x+1) = 6
x² + x = 6
x² + x - 6 = 0
D = 1 + 24 = 25
x₁ = -1 + 5 / 2 = 2
x₂ = -1 - 5 / 2 = -3
11) 2/x = 3 - x
x(3-x) = 2
3x - x² = 2
3x - x² - 2 = 0
-x² + 3x - 2 = 0
x² - 3x + 2 = 0
D = 9 - 4 * 2 = 1
x₁ = 3 + 1 / 2 = 2
x₂ = 3 - 1 / 2 = 1