[x(x²y²-xy)-2y(x²-x³y)÷3x²y
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 10:20:48
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
[x(x²y²-xy)-2y(x²-x³y)]÷3x²y
= (1/3)[(xy-1)-2(1-xy)]
= xy-1
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 10:20:48
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
[x(x²y²-xy)-2y(x²-x³y)÷3x²y
[x(x²y²-xy)-2y(x²-x³y)]÷3x²y
= (1/3)[(xy-1)-2(1-xy)]
= xy-1