解分式方程1/x(x-1)+1/x(x-1)+1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+……+1/(x+9)(x+10)=11/12
就一解吗
不止吧,还没算好
x=-5
不对,打错了
变形得11/(x-1)(x+10)=11/12x^2+9x-10=12(x-2)(x+11)=12x=-11,2