请教两道初二数学分式题(1)解方程:1/(x-7)+1/(x-4)=1/(x-6)+1/(x-5)(2)已知(2x+3)/x(x-1)(x+2)=A/x+B/(x-1)+C/(x+2) (A,B,C是常数),求A,B,C的值.

问题描述:

请教两道初二数学分式题
(1)解方程:1/(x-7)+1/(x-4)=1/(x-6)+1/(x-5)
(2)已知(2x+3)/x(x-1)(x+2)=A/x+B/(x-1)+C/(x+2) (A,B,C是常数),求A,B,C的值.