Объяснение:
x^2 - x - 2 = 0
x^2 + x - 2x - 2 = 0
x(x + 1) - 2(x + 1) = 0
(x + 1)(x - 2) = 0
x¹ = -1 x² = 2
Объяснение:
x^2 - x - 2 = 0
x^2 + x - 2x - 2 = 0
x(x + 1) - 2(x + 1) = 0
(x + 1)(x - 2) = 0
x¹ = -1 x² = 2