x+2/k是指(x+2)/k吧移项并通分【k(x+2)-k^2-(x-3)】/k^2>0化简 (k-1)x-(k^2-2k-3)/k^2>0即(k-1)x-(k^2-2k-3)>0 解得x>(k^2-2k-3)/(k-1) 其中k-1>0 因为除过来 >没变(k^2-2k-3)/(k-1)=3 解得k=5舍k=0答案是5...