[x﹙x²y²-xy)-y(x²-x³y﹚]÷3x²y

来源：学生学帮网 编辑：学帮网 时间：2024/06/02 02:37:05

[x﹙x²y²-xy)-y(x²-x³y﹚]÷3x²y

=[(xy-1)-(1-xy)]/3
=2xy/3
话说这问题为啥会分类在极品飞车里……