(xy-x²)²÷(x-y)²/xy·x-y/x² 计算

问题描述:

(xy-x²)²÷(x-y)²/xy·x-y/x² 计算

(xy-x²)²÷(x-y)²/xy·x-y/x²=x²(y-x)²÷(x-y)²/xy·x-y/x²=x³y·x-y/x²=xy(x-y)=x²y-xy²如追加其它问题,采纳本题后点击想我求助,...