[x(x²y²-xy)-y(x²-x³y)]÷3x²y,要过程,急,请各位帮帮忙
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 05:06:42
![[x(x²y²-xy)-y(x²-x³y)]÷3x²y,要过程,急,请各位帮帮忙](/uploads/image/z/999555-51-5.jpg?t=%5Bx%28x%26%23178%3By%26%23178%3B-xy%29-y%28x%26%23178%3B-x%26%23179%3By%29%5D%C3%B73x%26%23178%3By%2C%E8%A6%81%E8%BF%87%E7%A8%8B%2C%E6%80%A5%2C%E8%AF%B7%E5%90%84%E4%BD%8D%E5%B8%AE%E5%B8%AE%E5%BF%99)
[x(x²y²-xy)-y(x²-x³y)]÷3x²y,要过程,急,请各位帮帮忙
[x(x²y²-xy)-y(x²-x³y)]÷3x²y,要过程,急,请各位帮帮忙
[x(x²y²-xy)-y(x²-x³y)]÷3x²y,要过程,急,请各位帮帮忙
原式=(x³y²-x²y-x²y+x³y²)÷3x²y
=(2x³y²-2x²y)÷3x²y
=2x²y(xy-1)÷3x²y
=2/3(xy-1)
=2/3xy-2/3
原式=(x^3y^2-x^2y-x^2y+x^3y^2)÷3x^2y
=(2x^3-2x^2y))÷3x^2y
=2x^2y(xy-1))÷3x^2y
==2/3(xy-1)