Question

Efectueaza: x la a 2 supra x la a 2 -2x +1 • înmultit cu x la a 2 - 1 supra x

Answer 1

$\frac{ x^{2} }{ x^{2} -2x+1} * \frac{ x^{2} -1}{x} = \frac{ x^{2} }{( x-1)^{2} } * \frac{(x-1)(x+1)}{x} = \frac{x(x+1)}{x-1}$