Question

4 Simplificar (x-1)*(x+2)/(x-1)*(x²-1) *

Answer 1

Respuesta:

$\mathrm{Simplificar}\:\frac{\left(x-1\right)\cdot \left(x+2\right)}{\left(x-1\right)\cdot \left(x^2-1\right)}:\quad \frac{x+2}{x^2-1}$

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