Question

(x+1/x-2)*x^2-4/x^2-2x^2+x

Answer 1

$(x + \frac{1}{x - 2} ) \times \frac{ {x}^{2} - 4 }{ {x}^{2} - 2 {x}^{2} + x } = \frac{x(x - 2) + 1}{x - 2} \times \frac{(x - 2)(x + 2)}{ - {x}^{2} + x } = \frac{(x - 1)^{2} }{1} \times \frac{x + 2}{ - x(x - 1)} = \frac{(x - 1)(x + 2)}{x} = - \frac{ {x}^{2} + x - 2 }{x}$
воть,пользуйся)