[tex] \frac{4}{y} - \frac{2}{y-5}+ \frac{2y+10}{25-y^{2} } [/tex] Упростите выражение!

4/y+2/(5-y)+2y/(5-y)(5+y)=(100-4y²+10y+2y²+2y²+10y)/[y(25-y²)]==(20y+100)/[y(25-y²)]=20(y+5)/[y(5-y)(5+y)]=20/(5y-y²)