[2(x-y)³-8(x-y)²(x+y)+6y(x-y)²]÷2(x-y)².
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 03:53:15
[2(x-y)³-8(x-y)²(x+y)+6y(x-y)²]÷2(x-y)².[2(x-y)³-8(x-y)²(x+y)+6y(x-y)&
[2(x-y)³-8(x-y)²(x+y)+6y(x-y)²]÷2(x-y)².
[2(x-y)³-8(x-y)²(x+y)+6y(x-y)²]÷2(x-y)².
[2(x-y)³-8(x-y)²(x+y)+6y(x-y)²]÷2(x-y)².
原式=2(x-y)²[(x-y)-4(x+y)+3y]÷2(x-y)²
=x-y-4x-4y+3y
=-3x-2y