化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/22 02:39:33
化简:3(x-y)²-7(x-y)+2(x-y)²+5(x-y)化简:3(x-y)²-7(x-y)+2(x-y)²+5(x-y)化简:3(x-y)²-
化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
化简:3(x-y)²-7(x-y)+ 2(x-y)²+5(x-y)
