Упростите выражение: 1) 2)
1 x-x/(x-1)=(x²+x-x)/(x+1)=x²/(x-1) 2 (m+2)/4m-1/(m+4)=(m²+4m+2m+8-4m)/[4m(m+4)]=((m²+2m+8)/[4m(m+4)]