10a(x-y)²-5a(y-x)

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 17:50:10

10a(x-y)²-5a(y-x)
10a(x-y)²-5a(y-x)

10a(x-y)²-5a(y-x)
10a(x-y)²-5a(y-x)
=10a(x-y)²+5a(x-y)
=5a(x-y)[2(x-y)+1]

汗。。。。。。。。。。题目不会就是这样吧