问题
填空题
填上适当的式子,使以下等式成立:2xy2+x2y-xy=xy•______.
答案
∵(2xy2+x2y-xy)÷xy=2y+x-1,
∴2xy2+x2y-xy=xy•(2y+x-1),
故应填:2y+x-1.
填上适当的式子,使以下等式成立:2xy2+x2y-xy=xy•______.
∵(2xy2+x2y-xy)÷xy=2y+x-1,
∴2xy2+x2y-xy=xy•(2y+x-1),
故应填:2y+x-1.