[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:作业帮 时间:2024/07/14 15:48:23
![[2(x-y)³-8(x-y)²(x+y)+6y(x-y)²]÷2(x-y)².](/uploads/image/z/5298597-45-7.jpg?t=%5B2%28x-y%29%26%23179%3B-8%28x-y%29%26%23178%3B%28x%2By%29%2B6y%28x-y%29%26%23178%3B%5D%C3%B72%EF%BC%88x-y%EF%BC%89%26%23178%3B.)
x)6ҨЭTS64ֵs,5*+5*bo7z(~O'DH&H
P5O?ok65c\ ҋ$
fTT@Dt+t*m@n r]
[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