РЕШИТЕ УРАВНЕНИЕ x^2-5x+5=-x^2-x-(-3-2x^2)
X^2 - 5X + 5 = - X^2 - X + 3 + 2X^2 X^2 - 5X + 5 = X^2 - X + 3 - 5X + 5 = - X + 3 - X + 5X = 5 - 3 4X = 2 X = 0,5